Finding the Fourth Proportional to 1,423.46, 1,964.34 and 833.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423.46 : 1,964.34 = 833.99 : x
2. Step 2: Convert to fraction form
   1,423.46/1,964.34 = 833.99/x
3. Step 3: Cross multiply
   1,423.46x = 1,964.34 × 833.99
4. Step 4: Simplify right side
   1,423.46x = 1,638,230.09
5. Step 5: Solve for x
   x = 1,638,230.09/1,423.46
6. Step 6: Final answer
   x = 1,150.88