Finding the Fourth Proportional to 1,423.46, 1,964.82 and 834.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423.46 : 1,964.82 = 834.19 : x
2. Step 2: Convert to fraction form
   1,423.46/1,964.82 = 834.19/x
3. Step 3: Cross multiply
   1,423.46x = 1,964.82 × 834.19
4. Step 4: Simplify right side
   1,423.46x = 1,639,019.20
5. Step 5: Solve for x
   x = 1,639,019.20/1,423.46
6. Step 6: Final answer
   x = 1,151.43