Finding the Fourth Proportional to 1,039,123.20, 1,559,133.84 and 558,789.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039,123.20 : 1,559,133.84 = 558,789.59 : x
2. Step 2: Convert to fraction form
   1,039,123.20/1,559,133.84 = 558,789.59/x
3. Step 3: Cross multiply
   1,039,123.20x = 1,559,133.84 × 558,789.59
4. Step 4: Simplify right side
   1,039,123.20x = 871,227,751,413.06
5. Step 5: Solve for x
   x = 871,227,751,413.06/1,039,123.20
6. Step 6: Final answer
   x = 838,425.85