Finding the Fourth Proportional to 2,348.27, 3,540 and 2,189.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,348.27 : 3,540 = 2,189.72 : x
2. Step 2: Convert to fraction form
   2,348.27/3,540 = 2,189.72/x
3. Step 3: Cross multiply
   2,348.27x = 3,540 × 2,189.72
4. Step 4: Simplify right side
   2,348.27x = 7,751,608.80
5. Step 5: Solve for x
   x = 7,751,608.80/2,348.27
6. Step 6: Final answer
   x = 3,300.99