Finding the Fourth Proportional to 2,078.57, 2,868.37 and 1,134.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.57 : 2,868.37 = 1,134.39 : x
2. Step 2: Convert to fraction form
   2,078.57/2,868.37 = 1,134.39/x
3. Step 3: Cross multiply
   2,078.57x = 2,868.37 × 1,134.39
4. Step 4: Simplify right side
   2,078.57x = 3,253,850.24
5. Step 5: Solve for x
   x = 3,253,850.24/2,078.57
6. Step 6: Final answer
   x = 1,565.43