Finding the Fourth Proportional to 8,323.68, 12,488.16 and 2,480.64

Step by Step Solution

1. Step 1: Write the proportion equation
   8,323.68 : 12,488.16 = 2,480.64 : x
2. Step 2: Convert to fraction form
   8,323.68/12,488.16 = 2,480.64/x
3. Step 3: Cross multiply
   8,323.68x = 12,488.16 × 2,480.64
4. Step 4: Simplify right side
   8,323.68x = 30,978,629.22
5. Step 5: Solve for x
   x = 30,978,629.22/8,323.68
6. Step 6: Final answer
   x = 3,721.75