The given partitions are not on the same whole disk
You have a 2.2 GB partition (disk0s4) on your drive. I am not sure this partition is even formatted. It is also possible the partition is not mounted. If not mounted, then the partition will not show up in the Finder. Anyway, this partition needs to be deleted before you can recover your missing free space.

The command below will delete this partition.

diskutil  eraseVolume  free  n  disk0s4


Once the disk0s4 partition is deleted, the next command can be used to recovery your missing free space.

diskutil  cs  resizestack  4A71281B-ECA8-40E1-A9D3-047D036A0788  0