Finding the Fourth Proportional to 1,423.82, 2,134.66 and 960.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423.82 : 2,134.66 = 960.30 : x
2. Step 2: Convert to fraction form
   1,423.82/2,134.66 = 960.30/x
3. Step 3: Cross multiply
   1,423.82x = 2,134.66 × 960.30
4. Step 4: Simplify right side
   1,423.82x = 2,049,903.32
5. Step 5: Solve for x
   x = 2,049,903.32/1,423.82
6. Step 6: Final answer
   x = 1,439.73