Finding the Fourth Proportional to 1,423.60, 1,964.52 and 834.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423.60 : 1,964.52 = 834.53 : x
2. Step 2: Convert to fraction form
   1,423.60/1,964.52 = 834.53/x
3. Step 3: Cross multiply
   1,423.60x = 1,964.52 × 834.53
4. Step 4: Simplify right side
   1,423.60x = 1,639,441.05
5. Step 5: Solve for x
   x = 1,639,441.05/1,423.60
6. Step 6: Final answer
   x = 1,151.62