Finding the Fourth Proportional to 1,423.92, 1,965.06 and 834.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423.92 : 1,965.06 = 834.42 : x
2. Step 2: Convert to fraction form
   1,423.92/1,965.06 = 834.42/x
3. Step 3: Cross multiply
   1,423.92x = 1,965.06 × 834.42
4. Step 4: Simplify right side
   1,423.92x = 1,639,685.37
5. Step 5: Solve for x
   x = 1,639,685.37/1,423.92
6. Step 6: Final answer
   x = 1,151.53