A piece of iron (specific heat capacity = 0.452 J·g-1· °C-1) with a mass of 54.3218 g is heated in a water bath until it reaches a temperature of 98.2 °C. The iron is then transferred into a calorimeter (nested Styrofoam cups) that contains 68.5314 g of water initially at 22.1 °C. The final temperature of the entire system is 27.5 °C. The specific heat capacity of water is 4.184 J·g-1· °C-1. Based on this information, determine the value of the calorimeter constant, Ccal.