Finding the Fourth Proportional to 2,539.89, 3,807.14 and 1,078.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,539.89 : 3,807.14 = 1,078.29 : x
2. Step 2: Convert to fraction form
   2,539.89/3,807.14 = 1,078.29/x
3. Step 3: Cross multiply
   2,539.89x = 3,807.14 × 1,078.29
4. Step 4: Simplify right side
   2,539.89x = 4,105,195.60
5. Step 5: Solve for x
   x = 4,105,195.60/2,539.89
6. Step 6: Final answer
   x = 1,616.29