Finding the Fourth Proportional to 939,851.74, 1,296,996.72 and 510,131.96

Step by Step Solution

1. Step 1: Write the proportion equation
   939,851.74 : 1,296,996.72 = 510,131.96 : x
2. Step 2: Convert to fraction form
   939,851.74/1,296,996.72 = 510,131.96/x
3. Step 3: Cross multiply
   939,851.74x = 1,296,996.72 × 510,131.96
4. Step 4: Simplify right side
   939,851.74x = 661,639,478,887.17
5. Step 5: Solve for x
   x = 661,639,478,887.17/939,851.74
6. Step 6: Final answer
   x = 703,982.82