Finding the Fourth Proportional to 1,043,147.10, 1,564,793.55 and 411,978.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,043,147.10 : 1,564,793.55 = 411,978.90 : x
2. Step 2: Convert to fraction form
   1,043,147.10/1,564,793.55 = 411,978.90/x
3. Step 3: Cross multiply
   1,043,147.10x = 1,564,793.55 × 411,978.90
4. Step 4: Simplify right side
   1,043,147.10x = 644,661,925,456.10
5. Step 5: Solve for x
   x = 644,661,925,456.10/1,043,147.10
6. Step 6: Final answer
   x = 617,997.14