Finding the Fourth Proportional to 1,443.94, 1,992.52 and 814.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.94 : 1,992.52 = 814.43 : x
2. Step 2: Convert to fraction form
   1,443.94/1,992.52 = 814.43/x
3. Step 3: Cross multiply
   1,443.94x = 1,992.52 × 814.43
4. Step 4: Simplify right side
   1,443.94x = 1,622,768.06
5. Step 5: Solve for x
   x = 1,622,768.06/1,443.94
6. Step 6: Final answer
   x = 1,123.85