Is this an easy fold?

Hopefully this has adequate content to not get steamrolled by Cit.

PokerStars No-Limit Hold'em Tourney, Big Blind is t150 (9 handed) FTR converter on zerodivide.cx

MP1 (t5255)
MP2 (t1190)
MP3 (t2420)
CO (t3600)
Button (t1750)
SB (t660)
BB (t9060)
Hero (t1410)
UTG+1 (t1655)

Preflop: Hero is UTG with K[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/heart.gif[/img].
Hero raises to t500</font>, 4 folds</font>, CO raises to t850</font>, 2 folds</font>, BB raises to t9060</font>

18 person SnG down to final table. CO has been showing Ax very frequently. Have not seen him reraise. Although I am feeling very certain that he will call the all in.

BB (Big Stack) has been running nuclear hot. Calling all ins with any ace and just hitting all the cards he needs. Taken out 4 people thus far. Winning lots of hands on the showdown rather than betting people out.

So, now my thinking: I have $910 left and the blinds are coming. Only two hands am I afraid of. Assuming the main pot is $1410 X 3 + SB = $4305 I am getting almost 5 to 1 to call. (This given the CO throws in)

What is my move?

Thanks