Finding the Fourth Proportional to 4,078.94, 5,629.33 and 2,286.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,078.94 : 5,629.33 = 2,286.72 : x
2. Step 2: Convert to fraction form
   4,078.94/5,629.33 = 2,286.72/x
3. Step 3: Cross multiply
   4,078.94x = 5,629.33 × 2,286.72
4. Step 4: Simplify right side
   4,078.94x = 12,872,695.78
5. Step 5: Solve for x
   x = 12,872,695.78/4,078.94
6. Step 6: Final answer
   x = 3,155.90