Finding the Fourth Proportional to 1,443.73, 1,992.41 and 814.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.73 : 1,992.41 = 814.28 : x
2. Step 2: Convert to fraction form
   1,443.73/1,992.41 = 814.28/x
3. Step 3: Cross multiply
   1,443.73x = 1,992.41 × 814.28
4. Step 4: Simplify right side
   1,443.73x = 1,622,379.61
5. Step 5: Solve for x
   x = 1,622,379.61/1,443.73
6. Step 6: Final answer
   x = 1,123.74