Yarn useable with pattern?

I found a pattern that looks similar to a picture of a scarf I love that didn’t have a pattern.
Michaels doesn’t have the yarn the pattern calls for. I got the yarn I could find that was most similar.
Didn’t realize until after I bought the yarn … it’s not worsted weight. Can I still use it?
The pattern calls for :
Berroco comfort worsted weight yarn

I bought :
loops & threads woolike

Would the pattern still turn out?

If the difference is slight it’s generally not a problem, but those two yarns are so different in weight you will not get the same result as the picture. The one you bought is a light fingering/sock weight yarn.

If it’s knit exactly as written with the correct needle size the final scarf will be much smaller. You said you don’t have a pattern though so if it’s a simple pattern you could increase the size.

BTW I use Comfort all the time for baby things and chemo caps. I get it at my local yarn store (LYS).

There’s quite a difference between the two yarns. The Woolike is light fingering that knits at 32sts/4inches while a worsted knits at 20-22sts/4inches. If you don’t adjust the number of sts, the pattern will be substantially smaller. You might be able to knit a larger size, depending on your gauge with the Woolike.
http://www.ravelry.com/yarns/library/loops--threads-woolike
What is it that you want to make?

http://www.knitandbake.com/

This is where the pattern is. The mustard coloured scarf /shawl

Could I maybe use two or three strans of yarn to make it work?

This implies that 4 strands of fingering would equal a strand of worsted. Depends on how much yarn you have.
https://www.lionbrand.com/faq/16.html?language=
It might be better to save the fingering and buy some Comfort for the pattern.