Finding the Fourth Proportional to 2,814.48, 3,882.78 and 1,819.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,814.48 : 3,882.78 = 1,819.86 : x
2. Step 2: Convert to fraction form
   2,814.48/3,882.78 = 1,819.86/x
3. Step 3: Cross multiply
   2,814.48x = 3,882.78 × 1,819.86
4. Step 4: Simplify right side
   2,814.48x = 7,066,116.01
5. Step 5: Solve for x
   x = 7,066,116.01/2,814.48
6. Step 6: Final answer
   x = 2,510.63