Finding the Fourth Proportional to 2,326.28, 3,206.58 and 2,280.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,326.28 : 3,206.58 = 2,280.20 : x
2. Step 2: Convert to fraction form
   2,326.28/3,206.58 = 2,280.20/x
3. Step 3: Cross multiply
   2,326.28x = 3,206.58 × 2,280.20
4. Step 4: Simplify right side
   2,326.28x = 7,311,643.72
5. Step 5: Solve for x
   x = 7,311,643.72/2,326.28
6. Step 6: Final answer
   x = 3,143.06