Finding the Fourth Proportional to 2,358.46, 3,538.61 and 715.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,358.46 : 3,538.61 = 715.18 : x
2. Step 2: Convert to fraction form
   2,358.46/3,538.61 = 715.18/x
3. Step 3: Cross multiply
   2,358.46x = 3,538.61 × 715.18
4. Step 4: Simplify right side
   2,358.46x = 2,530,721.83
5. Step 5: Solve for x
   x = 2,530,721.83/2,358.46
6. Step 6: Final answer
   x = 1,073.04