Sirdar baby cardigan pattern help

I am stuck on the instructions that shape raglan and neck at same time.
I’ve got the required stitches on needle and I think I’m correct down to this point but I have no idea what this next step means
‘Work 17 rows decreasing 1 st. at raglan edge as before in next and every fool alternate row AT SAME TIME decrease 1 st at neck edge in 1st and every following 4th Row

TIA
Betsy

Hi and welcome!
These can be confusing directions. If you call the next row, row 1, then you would dec at the raglan edge on rows 1,3,5,7,9,11,13,15,17,19 etc.
Dec at the neck edge on rows 1,5,9,13,17,21, etc.

Thank you. Perfect!!