Finding the Fourth Proportional to 2,817.11, 3,886.31 and 1,822.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,817.11 : 3,886.31 = 1,822.71 : x
2. Step 2: Convert to fraction form
   2,817.11/3,886.31 = 1,822.71/x
3. Step 3: Cross multiply
   2,817.11x = 3,886.31 × 1,822.71
4. Step 4: Simplify right side
   2,817.11x = 7,083,610.94
5. Step 5: Solve for x
   x = 7,083,610.94/2,817.11
6. Step 6: Final answer
   x = 2,514.50