Finding the Fourth Proportional to 1,443.67, 1,992.26 and 814.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.67 : 1,992.26 = 814.19 : x
2. Step 2: Convert to fraction form
   1,443.67/1,992.26 = 814.19/x
3. Step 3: Cross multiply
   1,443.67x = 1,992.26 × 814.19
4. Step 4: Simplify right side
   1,443.67x = 1,622,077.22
5. Step 5: Solve for x
   x = 1,622,077.22/1,443.67
6. Step 6: Final answer
   x = 1,123.58