Finding the Fourth Proportional to 715,091.92, 986,585.94 and 404,952.10

Step by Step Solution

1. Step 1: Write the proportion equation
   715,091.92 : 986,585.94 = 404,952.10 : x
2. Step 2: Convert to fraction form
   715,091.92/986,585.94 = 404,952.10/x
3. Step 3: Cross multiply
   715,091.92x = 986,585.94 × 404,952.10
4. Step 4: Simplify right side
   715,091.92x = 399,520,045,767.01
5. Step 5: Solve for x
   x = 399,520,045,767.01/715,091.92
6. Step 6: Final answer
   x = 558,697.47