Finding the Fourth Proportional to 2,114.50, 3,172.17 and 960.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.50 : 3,172.17 = 960.25 : x
2. Step 2: Convert to fraction form
   2,114.50/3,172.17 = 960.25/x
3. Step 3: Cross multiply
   2,114.50x = 3,172.17 × 960.25
4. Step 4: Simplify right side
   2,114.50x = 3,046,076.24
5. Step 5: Solve for x
   x = 3,046,076.24/2,114.50
6. Step 6: Final answer
   x = 1,440.57