Finding the Fourth Proportional to 2,397.97, 3,309.69 and 1,513.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,397.97 : 3,309.69 = 1,513.18 : x
2. Step 2: Convert to fraction form
   2,397.97/3,309.69 = 1,513.18/x
3. Step 3: Cross multiply
   2,397.97x = 3,309.69 × 1,513.18
4. Step 4: Simplify right side
   2,397.97x = 5,008,156.71
5. Step 5: Solve for x
   x = 5,008,156.71/2,397.97
6. Step 6: Final answer
   x = 2,088.50