Finding the Fourth Proportional to 2,271.15, 3,407.28 and 954.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.15 : 3,407.28 = 954.18 : x
2. Step 2: Convert to fraction form
   2,271.15/3,407.28 = 954.18/x
3. Step 3: Cross multiply
   2,271.15x = 3,407.28 × 954.18
4. Step 4: Simplify right side
   2,271.15x = 3,251,158.43
5. Step 5: Solve for x
   x = 3,251,158.43/2,271.15
6. Step 6: Final answer
   x = 1,431.50