Finding the Fourth Proportional to 1,273.55, 1,758.24 and 956.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,273.55 : 1,758.24 = 956.25 : x
2. Step 2: Convert to fraction form
   1,273.55/1,758.24 = 956.25/x
3. Step 3: Cross multiply
   1,273.55x = 1,758.24 × 956.25
4. Step 4: Simplify right side
   1,273.55x = 1,681,317
5. Step 5: Solve for x
   x = 1,681,317/1,273.55
6. Step 6: Final answer
   x = 1,320.18