Finding the Fourth Proportional to 1,658.34, 2,487.42 and 684.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,658.34 : 2,487.42 = 684.42 : x
2. Step 2: Convert to fraction form
   1,658.34/2,487.42 = 684.42/x
3. Step 3: Cross multiply
   1,658.34x = 2,487.42 × 684.42
4. Step 4: Simplify right side
   1,658.34x = 1,702,440.00
5. Step 5: Solve for x
   x = 1,702,440.00/1,658.34
6. Step 6: Final answer
   x = 1,026.59