Finding the Fourth Proportional to 942,490.38, 1,300,642.39 and 512,773.59

Step by Step Solution

1. Step 1: Write the proportion equation
   942,490.38 : 1,300,642.39 = 512,773.59 : x
2. Step 2: Convert to fraction form
   942,490.38/1,300,642.39 = 512,773.59/x
3. Step 3: Cross multiply
   942,490.38x = 1,300,642.39 × 512,773.59
4. Step 4: Simplify right side
   942,490.38x = 666,935,064,386.57
5. Step 5: Solve for x
   x = 666,935,064,386.57/942,490.38
6. Step 6: Final answer
   x = 707,630.63