Finding the Fourth Proportional to 1,435,665.70, 2,153,790.15 and 489,132.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435,665.70 : 2,153,790.15 = 489,132.10 : x
2. Step 2: Convert to fraction form
   1,435,665.70/2,153,790.15 = 489,132.10/x
3. Step 3: Cross multiply
   1,435,665.70x = 2,153,790.15 × 489,132.10
4. Step 4: Simplify right side
   1,435,665.70x = 1,053,487,899,028.82
5. Step 5: Solve for x
   x = 1,053,487,899,028.82/1,435,665.70
6. Step 6: Final answer
   x = 733,797.50