Finding the Fourth Proportional to 3,686.67, 5,087.22 and 2,092.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686.67 : 5,087.22 = 2,092.81 : x
2. Step 2: Convert to fraction form
   3,686.67/5,087.22 = 2,092.81/x
3. Step 3: Cross multiply
   3,686.67x = 5,087.22 × 2,092.81
4. Step 4: Simplify right side
   3,686.67x = 10,646,584.89
5. Step 5: Solve for x
   x = 10,646,584.89/3,686.67
6. Step 6: Final answer
   x = 2,887.86