Finding the Fourth Proportional to 2,249,055.28, 3,105,046.20 and 1,390,766.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,249,055.28 : 3,105,046.20 = 1,390,766.32 : x
2. Step 2: Convert to fraction form
   2,249,055.28/3,105,046.20 = 1,390,766.32/x
3. Step 3: Cross multiply
   2,249,055.28x = 3,105,046.20 × 1,390,766.32
4. Step 4: Simplify right side
   2,249,055.28x = 4,318,393,677,003.98
5. Step 5: Solve for x
   x = 4,318,393,677,003.98/2,249,055.28
6. Step 6: Final answer
   x = 1,920,092.28