Finding the Fourth Proportional to 2,631.12, 3,944.04 and 898.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.12 : 3,944.04 = 898.56 : x
2. Step 2: Convert to fraction form
   2,631.12/3,944.04 = 898.56/x
3. Step 3: Cross multiply
   2,631.12x = 3,944.04 × 898.56
4. Step 4: Simplify right side
   2,631.12x = 3,543,956.58
5. Step 5: Solve for x
   x = 3,543,956.58/2,631.12
6. Step 6: Final answer
   x = 1,346.94