Finding the Fourth Proportional to 2,814.88, 3,882.80 and 1,818.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,814.88 : 3,882.80 = 1,818.56 : x
2. Step 2: Convert to fraction form
   2,814.88/3,882.80 = 1,818.56/x
3. Step 3: Cross multiply
   2,814.88x = 3,882.80 × 1,818.56
4. Step 4: Simplify right side
   2,814.88x = 7,061,104.77
5. Step 5: Solve for x
   x = 7,061,104.77/2,814.88
6. Step 6: Final answer
   x = 2,508.49