Finding the Fourth Proportional to 766,172.38, 1,057,317.83 and 444,069.31

Step by Step Solution

1. Step 1: Write the proportion equation
   766,172.38 : 1,057,317.83 = 444,069.31 : x
2. Step 2: Convert to fraction form
   766,172.38/1,057,317.83 = 444,069.31/x
3. Step 3: Cross multiply
   766,172.38x = 1,057,317.83 × 444,069.31
4. Step 4: Simplify right side
   766,172.38x = 469,522,399,218.80
5. Step 5: Solve for x
   x = 469,522,399,218.80/766,172.38
6. Step 6: Final answer
   x = 612,815.62