Finding the Fourth Proportional to 1,456.89, 2,011.31 and 960.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.89 : 2,011.31 = 960.36 : x
2. Step 2: Convert to fraction form
   1,456.89/2,011.31 = 960.36/x
3. Step 3: Cross multiply
   1,456.89x = 2,011.31 × 960.36
4. Step 4: Simplify right side
   1,456.89x = 1,931,581.67
5. Step 5: Solve for x
   x = 1,931,581.67/1,456.89
6. Step 6: Final answer
   x = 1,325.83