Finding the Fourth Proportional to 3,300.27, 4,949.20 and 959.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,300.27 : 4,949.20 = 959.64 : x
2. Step 2: Convert to fraction form
   3,300.27/4,949.20 = 959.64/x
3. Step 3: Cross multiply
   3,300.27x = 4,949.20 × 959.64
4. Step 4: Simplify right side
   3,300.27x = 4,749,447.89
5. Step 5: Solve for x
   x = 4,749,447.89/3,300.27
6. Step 6: Final answer
   x = 1,439.11