Finding the Fourth Proportional to 2,189.52, 3,019.56 and 1,443.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.52 : 3,019.56 = 1,443.24 : x
2. Step 2: Convert to fraction form
   2,189.52/3,019.56 = 1,443.24/x
3. Step 3: Cross multiply
   2,189.52x = 3,019.56 × 1,443.24
4. Step 4: Simplify right side
   2,189.52x = 4,357,949.77
5. Step 5: Solve for x
   x = 4,357,949.77/2,189.52
6. Step 6: Final answer
   x = 1,990.37