Finding the Fourth Proportional to 864,086.70, 1,192,414.86 and 482,105.28

Step by Step Solution

1. Step 1: Write the proportion equation
   864,086.70 : 1,192,414.86 = 482,105.28 : x
2. Step 2: Convert to fraction form
   864,086.70/1,192,414.86 = 482,105.28/x
3. Step 3: Cross multiply
   864,086.70x = 1,192,414.86 × 482,105.28
4. Step 4: Simplify right side
   864,086.70x = 574,869,499,956.46
5. Step 5: Solve for x
   x = 574,869,499,956.46/864,086.70
6. Step 6: Final answer
   x = 665,291.46