Finding the Fourth Proportional to 766,411.87, 1,057,648.67 and 444,308.69

Step by Step Solution

1. Step 1: Write the proportion equation
   766,411.87 : 1,057,648.67 = 444,308.69 : x
2. Step 2: Convert to fraction form
   766,411.87/1,057,648.67 = 444,308.69/x
3. Step 3: Cross multiply
   766,411.87x = 1,057,648.67 × 444,308.69
4. Step 4: Simplify right side
   766,411.87x = 469,922,495,047.94
5. Step 5: Solve for x
   x = 469,922,495,047.94/766,411.87
6. Step 6: Final answer
   x = 613,146.16