Figure 1: Skip stitch numbers 1, 2 and 3, work FPtr around stitch number 4, work one FPtr around each of the next 2 stitches.
YO twice, working behind the 3 FPtr just made insert hook right to left around the first missed stitch (stitch #1).
Figure 2: It is easier to see the stitch that you grabbed if you view your work from the top.
Figure 3: YO and pull up a loop (4 loops on hook), (YO and draw through 2 loops on hook) 3 times. Repeat this process for stitch numbers 2 and 3.
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