Finding the Fourth Proportional to 2,443.26, 3,658.95 and 1,145.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.26 : 3,658.95 = 1,145.10 : x
2. Step 2: Convert to fraction form
   2,443.26/3,658.95 = 1,145.10/x
3. Step 3: Cross multiply
   2,443.26x = 3,658.95 × 1,145.10
4. Step 4: Simplify right side
   2,443.26x = 4,189,863.65
5. Step 5: Solve for x
   x = 4,189,863.65/2,443.26
6. Step 6: Final answer
   x = 1,714.87