Finding the Fourth Proportional to 2,457.79, 3,391.49 and 1,513.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,457.79 : 3,391.49 = 1,513.43 : x
2. Step 2: Convert to fraction form
   2,457.79/3,391.49 = 1,513.43/x
3. Step 3: Cross multiply
   2,457.79x = 3,391.49 × 1,513.43
4. Step 4: Simplify right side
   2,457.79x = 5,132,769.54
5. Step 5: Solve for x
   x = 5,132,769.54/2,457.79
6. Step 6: Final answer
   x = 2,088.37