Finding the Fourth Proportional to 1,021,061.12, 1,531,592.04 and 459,439.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,021,061.12 : 1,531,592.04 = 459,439.52 : x
2. Step 2: Convert to fraction form
   1,021,061.12/1,531,592.04 = 459,439.52/x
3. Step 3: Cross multiply
   1,021,061.12x = 1,531,592.04 × 459,439.52
4. Step 4: Simplify right side
   1,021,061.12x = 703,673,911,693.42
5. Step 5: Solve for x
   x = 703,673,911,693.42/1,021,061.12
6. Step 6: Final answer
   x = 689,159.44