Finding the Fourth Proportional to 1,443.96, 1,992.56 and 814.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.96 : 1,992.56 = 814.44 : x
2. Step 2: Convert to fraction form
   1,443.96/1,992.56 = 814.44/x
3. Step 3: Cross multiply
   1,443.96x = 1,992.56 × 814.44
4. Step 4: Simplify right side
   1,443.96x = 1,622,820.57
5. Step 5: Solve for x
   x = 1,622,820.57/1,443.96
6. Step 6: Final answer
   x = 1,123.87