Finding the Fourth Proportional to 2,078.47, 2,868.30 and 1,134.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.47 : 2,868.30 = 1,134.28 : x
2. Step 2: Convert to fraction form
   2,078.47/2,868.30 = 1,134.28/x
3. Step 3: Cross multiply
   2,078.47x = 2,868.30 × 1,134.28
4. Step 4: Simplify right side
   2,078.47x = 3,253,448.15
5. Step 5: Solve for x
   x = 3,253,448.15/2,078.47
6. Step 6: Final answer
   x = 1,565.31