Finding the Fourth Proportional to 3,066.72, 4,229.75 and 2,124.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,066.72 : 4,229.75 = 2,124.09 : x
2. Step 2: Convert to fraction form
   3,066.72/4,229.75 = 2,124.09/x
3. Step 3: Cross multiply
   3,066.72x = 4,229.75 × 2,124.09
4. Step 4: Simplify right side
   3,066.72x = 8,984,359.06
5. Step 5: Solve for x
   x = 8,984,359.06/3,066.72
6. Step 6: Final answer
   x = 2,929.63