Finding the Fourth Proportional to 2,443.12, 3,659.98 and 1,618.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.12 : 3,659.98 = 1,618.96 : x
2. Step 2: Convert to fraction form
   2,443.12/3,659.98 = 1,618.96/x
3. Step 3: Cross multiply
   2,443.12x = 3,659.98 × 1,618.96
4. Step 4: Simplify right side
   2,443.12x = 5,925,361.22
5. Step 5: Solve for x
   x = 5,925,361.22/2,443.12
6. Step 6: Final answer
   x = 2,425.33