Finding the Fourth Proportional to 2,189.48, 3,020.62 and 1,443.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.48 : 3,020.62 = 1,443.82 : x
2. Step 2: Convert to fraction form
   2,189.48/3,020.62 = 1,443.82/x
3. Step 3: Cross multiply
   2,189.48x = 3,020.62 × 1,443.82
4. Step 4: Simplify right side
   2,189.48x = 4,361,231.57
5. Step 5: Solve for x
   x = 4,361,231.57/2,189.48
6. Step 6: Final answer
   x = 1,991.90