Finding the Fourth Proportional to 3,666.72, 5,472.84 and 3,229.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,666.72 : 5,472.84 = 3,229.32 : x
2. Step 2: Convert to fraction form
   3,666.72/5,472.84 = 3,229.32/x
3. Step 3: Cross multiply
   3,666.72x = 5,472.84 × 3,229.32
4. Step 4: Simplify right side
   3,666.72x = 17,673,551.67
5. Step 5: Solve for x
   x = 17,673,551.67/3,666.72
6. Step 6: Final answer
   x = 4,819.99