Finding the Fourth Proportional to 2,886.67, 3,981.33 and 2,090.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.67 : 3,981.33 = 2,090.10 : x
2. Step 2: Convert to fraction form
   2,886.67/3,981.33 = 2,090.10/x
3. Step 3: Cross multiply
   2,886.67x = 3,981.33 × 2,090.10
4. Step 4: Simplify right side
   2,886.67x = 8,321,377.83
5. Step 5: Solve for x
   x = 8,321,377.83/2,886.67
6. Step 6: Final answer
   x = 2,882.69