Finding the Fourth Proportional to 2,271.70, 3,405.12 and 956.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.70 : 3,405.12 = 956.17 : x
2. Step 2: Convert to fraction form
   2,271.70/3,405.12 = 956.17/x
3. Step 3: Cross multiply
   2,271.70x = 3,405.12 × 956.17
4. Step 4: Simplify right side
   2,271.70x = 3,255,873.59
5. Step 5: Solve for x
   x = 3,255,873.59/2,271.70
6. Step 6: Final answer
   x = 1,433.23