Finding the Fourth Proportional to 2,688.30, 4,031.37 and 956.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,688.30 : 4,031.37 = 956.52 : x
2. Step 2: Convert to fraction form
   2,688.30/4,031.37 = 956.52/x
3. Step 3: Cross multiply
   2,688.30x = 4,031.37 × 956.52
4. Step 4: Simplify right side
   2,688.30x = 3,856,086.03
5. Step 5: Solve for x
   x = 3,856,086.03/2,688.30
6. Step 6: Final answer
   x = 1,434.40