Finding the Fourth Proportional to 794,456.10, 1,188,962.55 and 479,139.30

Step by Step Solution

1. Step 1: Write the proportion equation
   794,456.10 : 1,188,962.55 = 479,139.30 : x
2. Step 2: Convert to fraction form
   794,456.10/1,188,962.55 = 479,139.30/x
3. Step 3: Cross multiply
   794,456.10x = 1,188,962.55 × 479,139.30
4. Step 4: Simplify right side
   794,456.10x = 569,678,683,933.22
5. Step 5: Solve for x
   x = 569,678,683,933.22/794,456.10
6. Step 6: Final answer
   x = 717,067.54