Finding the Fourth Proportional to 2,483.12, 3,425.32 and 2,189.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,483.12 : 3,425.32 = 2,189.12 : x
2. Step 2: Convert to fraction form
   2,483.12/3,425.32 = 2,189.12/x
3. Step 3: Cross multiply
   2,483.12x = 3,425.32 × 2,189.12
4. Step 4: Simplify right side
   2,483.12x = 7,498,436.52
5. Step 5: Solve for x
   x = 7,498,436.52/2,483.12
6. Step 6: Final answer
   x = 3,019.76