Finding the Fourth Proportional to 2,828.41, 3,900.82 and 1,820.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,828.41 : 3,900.82 = 1,820.27 : x
2. Step 2: Convert to fraction form
   2,828.41/3,900.82 = 1,820.27/x
3. Step 3: Cross multiply
   2,828.41x = 3,900.82 × 1,820.27
4. Step 4: Simplify right side
   2,828.41x = 7,100,536.52
5. Step 5: Solve for x
   x = 7,100,536.52/2,828.41
6. Step 6: Final answer
   x = 2,510.44