fourth position

15 LETTERS · STARTS WITH F

fourth position is a valid 15-letter word worth 22 points in Scrabble and 24 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
F4O1U1R1T1H4P3O1S1I1T1I1O1N1
4 + 1 + 1 + 1 + 1 + 4 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =22 PTS
DOUBLE WORD → 44TRIPLE WORD → 66
MEANING

What does fourth position mean?

1