Finding the Fourth Proportional to 2,271.69, 3,406.06 and 956.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.69 : 3,406.06 = 956.29 : x
2. Step 2: Convert to fraction form
   2,271.69/3,406.06 = 956.29/x
3. Step 3: Cross multiply
   2,271.69x = 3,406.06 × 956.29
4. Step 4: Simplify right side
   2,271.69x = 3,257,181.12
5. Step 5: Solve for x
   x = 3,257,181.12/2,271.69
6. Step 6: Final answer
   x = 1,433.81