Finding the Fourth Proportional to 2,543.27, 3,499.12 and 2,243.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.27 : 3,499.12 = 2,243.21 : x
2. Step 2: Convert to fraction form
   2,543.27/3,499.12 = 2,243.21/x
3. Step 3: Cross multiply
   2,543.27x = 3,499.12 × 2,243.21
4. Step 4: Simplify right side
   2,543.27x = 7,849,260.98
5. Step 5: Solve for x
   x = 7,849,260.98/2,543.27
6. Step 6: Final answer
   x = 3,086.29