Finding the Fourth Proportional to 2,185.83, 3,017.97 and 1,687.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.83 : 3,017.97 = 1,687.68 : x
2. Step 2: Convert to fraction form
   2,185.83/3,017.97 = 1,687.68/x
3. Step 3: Cross multiply
   2,185.83x = 3,017.97 × 1,687.68
4. Step 4: Simplify right side
   2,185.83x = 5,093,367.61
5. Step 5: Solve for x
   x = 5,093,367.61/2,185.83
6. Step 6: Final answer
   x = 2,330.18