Finding the Fourth Proportional to 2,284.72, 3,425.24 and 2,155.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,284.72 : 3,425.24 = 2,155.92 : x
2. Step 2: Convert to fraction form
   2,284.72/3,425.24 = 2,155.92/x
3. Step 3: Cross multiply
   2,284.72x = 3,425.24 × 2,155.92
4. Step 4: Simplify right side
   2,284.72x = 7,384,543.42
5. Step 5: Solve for x
   x = 7,384,543.42/2,284.72
6. Step 6: Final answer
   x = 3,232.14