5/8×11/3×?×4/7×8/5×7/4=1 I can't figure out what fraction completes the equation!

$$\\{5\over 8}{8\over5}{4\over 7}{7\over4}{11\over 3}x=1 \\\\ {11\over 3}x=1 \\ \\ x={3\over 11}$$

WOW! that was so nicely and simply done heureka!i had a hard time simplifying it but u did it so easily!thats so nice!Thumbs up with points from me for you!