Finding the Fourth Proportional to 2,551,778.27, 3,521,443.46 and 1,390,220.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551,778.27 : 3,521,443.46 = 1,390,220.96 : x
2. Step 2: Convert to fraction form
   2,551,778.27/3,521,443.46 = 1,390,220.96/x
3. Step 3: Cross multiply
   2,551,778.27x = 3,521,443.46 × 1,390,220.96
4. Step 4: Simplify right side
   2,551,778.27x = 4,895,584,510,616.71
5. Step 5: Solve for x
   x = 4,895,584,510,616.71/2,551,778.27
6. Step 6: Final answer
   x = 1,918,499.17