Finding the Fourth Proportional to 8,443.16, 12,663.30 and 2,598.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,443.16 : 12,663.30 = 2,598.20 : x
2. Step 2: Convert to fraction form
   8,443.16/12,663.30 = 2,598.20/x
3. Step 3: Cross multiply
   8,443.16x = 12,663.30 × 2,598.20
4. Step 4: Simplify right side
   8,443.16x = 32,901,786.06
5. Step 5: Solve for x
   x = 32,901,786.06/8,443.16
6. Step 6: Final answer
   x = 3,896.86