Finding the Fourth Proportional to 830,291.37, 1,240,887.89 and 606,123.87

Step by Step Solution

1. Step 1: Write the proportion equation
   830,291.37 : 1,240,887.89 = 606,123.87 : x
2. Step 2: Convert to fraction form
   830,291.37/1,240,887.89 = 606,123.87/x
3. Step 3: Cross multiply
   830,291.37x = 1,240,887.89 × 606,123.87
4. Step 4: Simplify right side
   830,291.37x = 752,131,767,092.32
5. Step 5: Solve for x
   x = 752,131,767,092.32/830,291.37
6. Step 6: Final answer
   x = 905,864.85