Finding the Fourth Proportional to 2,543.86, 3,811.30 and 2,227.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.86 : 3,811.30 = 2,227.98 : x
2. Step 2: Convert to fraction form
   2,543.86/3,811.30 = 2,227.98/x
3. Step 3: Cross multiply
   2,543.86x = 3,811.30 × 2,227.98
4. Step 4: Simplify right side
   2,543.86x = 8,491,500.17
5. Step 5: Solve for x
   x = 8,491,500.17/2,543.86
6. Step 6: Final answer
   x = 3,338.04