Finding the Fourth Proportional to 3,707.52, 5,561.60 and 1,399.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,707.52 : 5,561.60 = 1,399.04 : x
2. Step 2: Convert to fraction form
   3,707.52/5,561.60 = 1,399.04/x
3. Step 3: Cross multiply
   3,707.52x = 5,561.60 × 1,399.04
4. Step 4: Simplify right side
   3,707.52x = 7,780,900.86
5. Step 5: Solve for x
   x = 7,780,900.86/3,707.52
6. Step 6: Final answer
   x = 2,098.68