Finding the Fourth Proportional to 988,492.38, 1,364,104.71 and 558,757.50

Step by Step Solution

1. Step 1: Write the proportion equation
   988,492.38 : 1,364,104.71 = 558,757.50 : x
2. Step 2: Convert to fraction form
   988,492.38/1,364,104.71 = 558,757.50/x
3. Step 3: Cross multiply
   988,492.38x = 1,364,104.71 × 558,757.50
4. Step 4: Simplify right side
   988,492.38x = 762,203,737,497.83
5. Step 5: Solve for x
   x = 762,203,737,497.83/988,492.38
6. Step 6: Final answer
   x = 771,077.00