Finding the Fourth Proportional to 2,184.88, 3,016.56 and 1,686.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,184.88 : 3,016.56 = 1,686.64 : x
2. Step 2: Convert to fraction form
   2,184.88/3,016.56 = 1,686.64/x
3. Step 3: Cross multiply
   2,184.88x = 3,016.56 × 1,686.64
4. Step 4: Simplify right side
   2,184.88x = 5,087,850.76
5. Step 5: Solve for x
   x = 5,087,850.76/2,184.88
6. Step 6: Final answer
   x = 2,328.66