Finding the Fourth Proportional to 8,452.50, 12,684.51 and 2,980.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,452.50 : 12,684.51 = 2,980.50 : x
2. Step 2: Convert to fraction form
   8,452.50/12,684.51 = 2,980.50/x
3. Step 3: Cross multiply
   8,452.50x = 12,684.51 × 2,980.50
4. Step 4: Simplify right side
   8,452.50x = 37,806,182.06
5. Step 5: Solve for x
   x = 37,806,182.06/8,452.50
6. Step 6: Final answer
   x = 4,472.78