Finding the Fourth Proportional to 1,423.37, 1,964.45 and 834.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423.37 : 1,964.45 = 834.10 : x
2. Step 2: Convert to fraction form
   1,423.37/1,964.45 = 834.10/x
3. Step 3: Cross multiply
   1,423.37x = 1,964.45 × 834.10
4. Step 4: Simplify right side
   1,423.37x = 1,638,544.92
5. Step 5: Solve for x
   x = 1,638,544.92/1,423.37
6. Step 6: Final answer
   x = 1,151.17