Finding the Fourth Proportional to 8,464.72, 12,698.04 and 2,622.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,464.72 : 12,698.04 = 2,622.80 : x
2. Step 2: Convert to fraction form
   8,464.72/12,698.04 = 2,622.80/x
3. Step 3: Cross multiply
   8,464.72x = 12,698.04 × 2,622.80
4. Step 4: Simplify right side
   8,464.72x = 33,304,419.31
5. Step 5: Solve for x
   x = 33,304,419.31/8,464.72
6. Step 6: Final answer
   x = 3,934.50