Finding the Fourth Proportional to 3,619,585.20, 5,429,372.88 and 923,910.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,619,585.20 : 5,429,372.88 = 923,910.72 : x
2. Step 2: Convert to fraction form
   3,619,585.20/5,429,372.88 = 923,910.72/x
3. Step 3: Cross multiply
   3,619,585.20x = 5,429,372.88 × 923,910.72
4. Step 4: Simplify right side
   3,619,585.20x = 5,016,255,806,709.27
5. Step 5: Solve for x
   x = 5,016,255,806,709.27/3,619,585.20
6. Step 6: Final answer
   x = 1,385,864.82