Finding the Fourth Proportional to 900,513.91, 1,350,100.18 and 545,442.31

Step by Step Solution

1. Step 1: Write the proportion equation
   900,513.91 : 1,350,100.18 = 545,442.31 : x
2. Step 2: Convert to fraction form
   900,513.91/1,350,100.18 = 545,442.31/x
3. Step 3: Cross multiply
   900,513.91x = 1,350,100.18 × 545,442.31
4. Step 4: Simplify right side
   900,513.91x = 736,401,760,910.62
5. Step 5: Solve for x
   x = 736,401,760,910.62/900,513.91
6. Step 6: Final answer
   x = 817,757.23