Finding the Fourth Proportional to 3,984.48, 5,499.24 and 3,320.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,984.48 : 5,499.24 = 3,320.28 : x
2. Step 2: Convert to fraction form
   3,984.48/5,499.24 = 3,320.28/x
3. Step 3: Cross multiply
   3,984.48x = 5,499.24 × 3,320.28
4. Step 4: Simplify right side
   3,984.48x = 18,259,016.59
5. Step 5: Solve for x
   x = 18,259,016.59/3,984.48
6. Step 6: Final answer
   x = 4,582.53