Finding the Fourth Proportional to 1,042,105.96, 1,563,905.49 and 443,487.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,042,105.96 : 1,563,905.49 = 443,487.61 : x
2. Step 2: Convert to fraction form
   1,042,105.96/1,563,905.49 = 443,487.61/x
3. Step 3: Cross multiply
   1,042,105.96x = 1,563,905.49 × 443,487.61
4. Step 4: Simplify right side
   1,042,105.96x = 693,572,708,025.98
5. Step 5: Solve for x
   x = 693,572,708,025.98/1,042,105.96
6. Step 6: Final answer
   x = 665,549.12