Finding the Fourth Proportional to 1,402.57, 1,936.02 and 959.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.57 : 1,936.02 = 959.68 : x
2. Step 2: Convert to fraction form
   1,402.57/1,936.02 = 959.68/x
3. Step 3: Cross multiply
   1,402.57x = 1,936.02 × 959.68
4. Step 4: Simplify right side
   1,402.57x = 1,857,959.67
5. Step 5: Solve for x
   x = 1,857,959.67/1,402.57
6. Step 6: Final answer
   x = 1,324.68