Finding the Fourth Proportional to 1,423.52, 1,964.16 and 833.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423.52 : 1,964.16 = 833.92 : x
2. Step 2: Convert to fraction form
   1,423.52/1,964.16 = 833.92/x
3. Step 3: Cross multiply
   1,423.52x = 1,964.16 × 833.92
4. Step 4: Simplify right side
   1,423.52x = 1,637,952.31
5. Step 5: Solve for x
   x = 1,637,952.31/1,423.52
6. Step 6: Final answer
   x = 1,150.64