Finding the Fourth Proportional to 1,018,434.10, 1,527,651.15 and 458,562.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,434.10 : 1,527,651.15 = 458,562.10 : x
2. Step 2: Convert to fraction form
   1,018,434.10/1,527,651.15 = 458,562.10/x
3. Step 3: Cross multiply
   1,018,434.10x = 1,527,651.15 × 458,562.10
4. Step 4: Simplify right side
   1,018,434.10x = 700,522,919,411.42
5. Step 5: Solve for x
   x = 700,522,919,411.42/1,018,434.10
6. Step 6: Final answer
   x = 687,843.15