Finding the Fourth Proportional to 3,422.16, 5,132.30 and 956.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,422.16 : 5,132.30 = 956.79 : x
2. Step 2: Convert to fraction form
   3,422.16/5,132.30 = 956.79/x
3. Step 3: Cross multiply
   3,422.16x = 5,132.30 × 956.79
4. Step 4: Simplify right side
   3,422.16x = 4,910,528.53
5. Step 5: Solve for x
   x = 4,910,528.53/3,422.16
6. Step 6: Final answer
   x = 1,434.92