Finding the Fourth Proportional to 8,282.72, 12,424.19 and 2,439.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,282.72 : 12,424.19 = 2,439.45 : x
2. Step 2: Convert to fraction form
   8,282.72/12,424.19 = 2,439.45/x
3. Step 3: Cross multiply
   8,282.72x = 12,424.19 × 2,439.45
4. Step 4: Simplify right side
   8,282.72x = 30,308,178.10
5. Step 5: Solve for x
   x = 30,308,178.10/8,282.72
6. Step 6: Final answer
   x = 3,659.20