Finding the Fourth Proportional to 766,028.76, 1,057,100.94 and 426,489.72

Step by Step Solution

1. Step 1: Write the proportion equation
   766,028.76 : 1,057,100.94 = 426,489.72 : x
2. Step 2: Convert to fraction form
   766,028.76/1,057,100.94 = 426,489.72/x
3. Step 3: Cross multiply
   766,028.76x = 1,057,100.94 × 426,489.72
4. Step 4: Simplify right side
   766,028.76x = 450,842,683,912.34
5. Step 5: Solve for x
   x = 450,842,683,912.34/766,028.76
6. Step 6: Final answer
   x = 588,545.38