Finding the Fourth Proportional to 1,456.79, 2,011.47 and 960.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.79 : 2,011.47 = 960.12 : x
2. Step 2: Convert to fraction form
   1,456.79/2,011.47 = 960.12/x
3. Step 3: Cross multiply
   1,456.79x = 2,011.47 × 960.12
4. Step 4: Simplify right side
   1,456.79x = 1,931,244.54
5. Step 5: Solve for x
   x = 1,931,244.54/1,456.79
6. Step 6: Final answer
   x = 1,325.69