Finding the Fourth Proportional to 5,647.82, 8,460.78 and 2,728.17

Step by Step Solution

1. Step 1: Write the proportion equation
   5,647.82 : 8,460.78 = 2,728.17 : x
2. Step 2: Convert to fraction form
   5,647.82/8,460.78 = 2,728.17/x
3. Step 3: Cross multiply
   5,647.82x = 8,460.78 × 2,728.17
4. Step 4: Simplify right side
   5,647.82x = 23,082,446.17
5. Step 5: Solve for x
   x = 23,082,446.17/5,647.82
6. Step 6: Final answer
   x = 4,086.97