Finding the Fourth Proportional to 766,484.71, 1,057,749.89 and 417,623.46

Step by Step Solution

1. Step 1: Write the proportion equation
   766,484.71 : 1,057,749.89 = 417,623.46 : x
2. Step 2: Convert to fraction form
   766,484.71/1,057,749.89 = 417,623.46/x
3. Step 3: Cross multiply
   766,484.71x = 1,057,749.89 × 417,623.46
4. Step 4: Simplify right side
   766,484.71x = 441,741,171,120.72
5. Step 5: Solve for x
   x = 441,741,171,120.72/766,484.71
6. Step 6: Final answer
   x = 576,320.92