Physics temp and heating problem( very hard)?

a 3.55kg sample oof an alloy is heated to 295 degrees c and plunged into an aluminium vessel containing 10l of water. the initial temperature of the vessel and water is 19 degress c, the m of the aluminium vessel is 2.1kg and the specific heat of aluminium is 9x10^2 j kg^-1 k^-1. if the final temperature is 28.5 degress celcius, find the specific heat of the alloy