Finding the Fourth Proportional to 683,128.29, 942,982.89 and 611,383.71

Step by Step Solution

1. Step 1: Write the proportion equation
   683,128.29 : 942,982.89 = 611,383.71 : x
2. Step 2: Convert to fraction form
   683,128.29/942,982.89 = 611,383.71/x
3. Step 3: Cross multiply
   683,128.29x = 942,982.89 × 611,383.71
4. Step 4: Simplify right side
   683,128.29x = 576,524,377,754.72
5. Step 5: Solve for x
   x = 576,524,377,754.72/683,128.29
6. Step 6: Final answer
   x = 843,947.45