Finding the Fourth Proportional to 900,818.43, 1,243,092.38 and 538,442.10

Step by Step Solution

1. Step 1: Write the proportion equation
   900,818.43 : 1,243,092.38 = 538,442.10 : x
2. Step 2: Convert to fraction form
   900,818.43/1,243,092.38 = 538,442.10/x
3. Step 3: Cross multiply
   900,818.43x = 1,243,092.38 × 538,442.10
4. Step 4: Simplify right side
   900,818.43x = 669,333,272,927.30
5. Step 5: Solve for x
   x = 669,333,272,927.30/900,818.43
6. Step 6: Final answer
   x = 743,027.95