Finding the Fourth Proportional to 1,435,510.16, 2,153,580.55 and 424,553.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435,510.16 : 2,153,580.55 = 424,553.31 : x
2. Step 2: Convert to fraction form
   1,435,510.16/2,153,580.55 = 424,553.31/x
3. Step 3: Cross multiply
   1,435,510.16x = 2,153,580.55 × 424,553.31
4. Step 4: Simplify right side
   1,435,510.16x = 914,309,754,612.32
5. Step 5: Solve for x
   x = 914,309,754,612.32/1,435,510.16
6. Step 6: Final answer
   x = 636,923.22