Finding the Fourth Proportional to 1,008,281.43, 1,391,411.88 and 549,401.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,008,281.43 : 1,391,411.88 = 549,401.43 : x
2. Step 2: Convert to fraction form
   1,008,281.43/1,391,411.88 = 549,401.43/x
3. Step 3: Cross multiply
   1,008,281.43x = 1,391,411.88 × 549,401.43
4. Step 4: Simplify right side
   1,008,281.43x = 764,443,676,590.99
5. Step 5: Solve for x
   x = 764,443,676,590.99/1,008,281.43
6. Step 6: Final answer
   x = 758,164.99