Finding the Fourth Proportional to 2,979.50, 4,469.39 and 2,458.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,979.50 : 4,469.39 = 2,458.53 : x
2. Step 2: Convert to fraction form
   2,979.50/4,469.39 = 2,458.53/x
3. Step 3: Cross multiply
   2,979.50x = 4,469.39 × 2,458.53
4. Step 4: Simplify right side
   2,979.50x = 10,988,117.10
5. Step 5: Solve for x
   x = 10,988,117.10/2,979.50
6. Step 6: Final answer
   x = 3,687.91