Finding the Fourth Proportional to 3,984.52, 5,499.22 and 2,391.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,984.52 : 5,499.22 = 2,391.28 : x
2. Step 2: Convert to fraction form
   3,984.52/5,499.22 = 2,391.28/x
3. Step 3: Cross multiply
   3,984.52x = 5,499.22 × 2,391.28
4. Step 4: Simplify right side
   3,984.52x = 13,150,174.80
5. Step 5: Solve for x
   x = 13,150,174.80/3,984.52
6. Step 6: Final answer
   x = 3,300.32