Finding the Fourth Proportional to 8,522.33, 12,784.21 and 2,680.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,522.33 : 12,784.21 = 2,680.61 : x
2. Step 2: Convert to fraction form
   8,522.33/12,784.21 = 2,680.61/x
3. Step 3: Cross multiply
   8,522.33x = 12,784.21 × 2,680.61
4. Step 4: Simplify right side
   8,522.33x = 34,269,410.55
5. Step 5: Solve for x
   x = 34,269,410.55/8,522.33
6. Step 6: Final answer
   x = 4,021.13