I'm not figuring it out. It seems to me that for every 4 sts in the row, you will have 5 once you do your inc. and after you subtract for the 11 ribbed sts ea end, it's not divisible by 4. Of course math and I often agree to disagree. Is the pattern online? Maybe there are corrections?
Cheating is an option. . . . Cheaters never win and winners never cheat, but smart knitters who want to retain an iota of sanity do, cheerfully. ~~Kory Stamper