Finding the Fourth Proportional to 3,453.24, 4,766.18 and 2,128.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,453.24 : 4,766.18 = 2,128.04 : x
2. Step 2: Convert to fraction form
   3,453.24/4,766.18 = 2,128.04/x
3. Step 3: Cross multiply
   3,453.24x = 4,766.18 × 2,128.04
4. Step 4: Simplify right side
   3,453.24x = 10,142,621.69
5. Step 5: Solve for x
   x = 10,142,621.69/3,453.24
6. Step 6: Final answer
   x = 2,937.13