Finding the Fourth Proportional to 1,443.65, 1,992.27 and 814.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.65 : 1,992.27 = 814.29 : x
2. Step 2: Convert to fraction form
   1,443.65/1,992.27 = 814.29/x
3. Step 3: Cross multiply
   1,443.65x = 1,992.27 × 814.29
4. Step 4: Simplify right side
   1,443.65x = 1,622,285.54
5. Step 5: Solve for x
   x = 1,622,285.54/1,443.65
6. Step 6: Final answer
   x = 1,123.74