Finding the Fourth Proportional to 1,658.09, 2,287.49 and 949.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,658.09 : 2,287.49 = 949.55 : x
2. Step 2: Convert to fraction form
   1,658.09/2,287.49 = 949.55/x
3. Step 3: Cross multiply
   1,658.09x = 2,287.49 × 949.55
4. Step 4: Simplify right side
   1,658.09x = 2,172,074.69
5. Step 5: Solve for x
   x = 2,172,074.69/1,658.09
6. Step 6: Final answer
   x = 1,309.99