Finding the Fourth Proportional to 2,439.16, 3,658.52 and 684.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439.16 : 3,658.52 = 684.02 : x
2. Step 2: Convert to fraction form
   2,439.16/3,658.52 = 684.02/x
3. Step 3: Cross multiply
   2,439.16x = 3,658.52 × 684.02
4. Step 4: Simplify right side
   2,439.16x = 2,502,502.56
5. Step 5: Solve for x
   x = 2,502,502.56/2,439.16
6. Step 6: Final answer
   x = 1,025.97