Finding the Fourth Proportional to 811,384.48, 1,120,855.89 and 738,665.92

Step by Step Solution

1. Step 1: Write the proportion equation
   811,384.48 : 1,120,855.89 = 738,665.92 : x
2. Step 2: Convert to fraction form
   811,384.48/1,120,855.89 = 738,665.92/x
3. Step 3: Cross multiply
   811,384.48x = 1,120,855.89 × 738,665.92
4. Step 4: Simplify right side
   811,384.48x = 827,938,047,174.27
5. Step 5: Solve for x
   x = 827,938,047,174.27/811,384.48
6. Step 6: Final answer
   x = 1,020,401.63