Finding the Fourth Proportional to 766,411.62, 1,057,648.25 and 444,308.38

Step by Step Solution

1. Step 1: Write the proportion equation
   766,411.62 : 1,057,648.25 = 444,308.38 : x
2. Step 2: Convert to fraction form
   766,411.62/1,057,648.25 = 444,308.38/x
3. Step 3: Cross multiply
   766,411.62x = 1,057,648.25 × 444,308.38
4. Step 4: Simplify right side
   766,411.62x = 469,921,980,567.34
5. Step 5: Solve for x
   x = 469,921,980,567.34/766,411.62
6. Step 6: Final answer
   x = 613,145.69