How to convert a pattern from Dk to 4 ply

Please could someone help me… I am trying to knit a shawl that my late mum did many times but its a DK pattern but she knitted it in 4 ply. Can the pattern be converted… Im not experienced enough knitter like my mum to do it.

Hello!!

What is the name of the pattern? That will help us to help you out!!

Knitcindy

Hello knitcindy it is a Peter Pan baby layette pattern no. 201.