Finding the Fourth Proportional to 1,423.54, 1,964.91 and 834.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423.54 : 1,964.91 = 834.22 : x
2. Step 2: Convert to fraction form
   1,423.54/1,964.91 = 834.22/x
3. Step 3: Cross multiply
   1,423.54x = 1,964.91 × 834.22
4. Step 4: Simplify right side
   1,423.54x = 1,639,167.22
5. Step 5: Solve for x
   x = 1,639,167.22/1,423.54
6. Step 6: Final answer
   x = 1,151.47