Finding the Fourth Proportional to 2,123,123.85, 2,930,513.03 and 1,398,500.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123,123.85 : 2,930,513.03 = 1,398,500.49 : x
2. Step 2: Convert to fraction form
   2,123,123.85/2,930,513.03 = 1,398,500.49/x
3. Step 3: Cross multiply
   2,123,123.85x = 2,930,513.03 × 1,398,500.49
4. Step 4: Simplify right side
   2,123,123.85x = 4,098,323,901,413.88
5. Step 5: Solve for x
   x = 4,098,323,901,413.88/2,123,123.85
6. Step 6: Final answer
   x = 1,930,327.29