Finding the Fourth Proportional to 1,114.29, 1,536.71 and 956.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.29 : 1,536.71 = 956.88 : x
2. Step 2: Convert to fraction form
   1,114.29/1,536.71 = 956.88/x
3. Step 3: Cross multiply
   1,114.29x = 1,536.71 × 956.88
4. Step 4: Simplify right side
   1,114.29x = 1,470,434.60
5. Step 5: Solve for x
   x = 1,470,434.60/1,114.29
6. Step 6: Final answer
   x = 1,319.62