Finding the Fourth Proportional to 1,072,304.71, 1,608,100.05 and 432,443.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,072,304.71 : 1,608,100.05 = 432,443.18 : x
2. Step 2: Convert to fraction form
   1,072,304.71/1,608,100.05 = 432,443.18/x
3. Step 3: Cross multiply
   1,072,304.71x = 1,608,100.05 × 432,443.18
4. Step 4: Simplify right side
   1,072,304.71x = 695,411,899,380.16
5. Step 5: Solve for x
   x = 695,411,899,380.16/1,072,304.71
6. Step 6: Final answer
   x = 648,520.79