What is it you're making? And can you post a link to the pattern?
Take a look at the picture and you should be able to tell whether the border is getting wider or the check pattern is increasing.
If the increases are in the border, increase one st in from each edge. If the increases are in the check pattern, increase in the opposite st to the first block (if the first block is a k4, increase with a purl st) and then continue that increase st on the following alternate rows till you have block of 4 sts. Do the same at the end of the check pattern.