Finding the Fourth Proportional to 2,499,405.80, 3,749,108.70 and 902,215.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499,405.80 : 3,749,108.70 = 902,215.40 : x
2. Step 2: Convert to fraction form
   2,499,405.80/3,749,108.70 = 902,215.40/x
3. Step 3: Cross multiply
   2,499,405.80x = 3,749,108.70 × 902,215.40
4. Step 4: Simplify right side
   2,499,405.80x = 3,382,503,605,413.98
5. Step 5: Solve for x
   x = 3,382,503,605,413.98/2,499,405.80
6. Step 6: Final answer
   x = 1,353,323.10