Finding the Fourth Proportional to 2,146.43, 3,219.17 and 960.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.43 : 3,219.17 = 960.59 : x
2. Step 2: Convert to fraction form
   2,146.43/3,219.17 = 960.59/x
3. Step 3: Cross multiply
   2,146.43x = 3,219.17 × 960.59
4. Step 4: Simplify right side
   2,146.43x = 3,092,305.76
5. Step 5: Solve for x
   x = 3,092,305.76/2,146.43
6. Step 6: Final answer
   x = 1,440.67