Finding the Fourth Proportional to 2,614.80, 3,915.72 and 1,458.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,614.80 : 3,915.72 = 1,458.12 : x
2. Step 2: Convert to fraction form
   2,614.80/3,915.72 = 1,458.12/x
3. Step 3: Cross multiply
   2,614.80x = 3,915.72 × 1,458.12
4. Step 4: Simplify right side
   2,614.80x = 5,709,589.65
5. Step 5: Solve for x
   x = 5,709,589.65/2,614.80
6. Step 6: Final answer
   x = 2,183.57