Finding the Fourth Proportional to 5,383.82, 8,076.34 and 1,686.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,383.82 : 8,076.34 = 1,686.27 : x
2. Step 2: Convert to fraction form
   5,383.82/8,076.34 = 1,686.27/x
3. Step 3: Cross multiply
   5,383.82x = 8,076.34 × 1,686.27
4. Step 4: Simplify right side
   5,383.82x = 13,618,922.25
5. Step 5: Solve for x
   x = 13,618,922.25/5,383.82
6. Step 6: Final answer
   x = 2,529.60