Finding the Fourth Proportional to 939,819.18, 1,296,951.72 and 510,099.30

Step by Step Solution

1. Step 1: Write the proportion equation
   939,819.18 : 1,296,951.72 = 510,099.30 : x
2. Step 2: Convert to fraction form
   939,819.18/1,296,951.72 = 510,099.30/x
3. Step 3: Cross multiply
   939,819.18x = 1,296,951.72 × 510,099.30
4. Step 4: Simplify right side
   939,819.18x = 661,574,164,505.80
5. Step 5: Solve for x
   x = 661,574,164,505.80/939,819.18
6. Step 6: Final answer
   x = 703,937.71