Finding the Fourth Proportional to 6,540.38, 9,817.59 and 2,647.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,540.38 : 9,817.59 = 2,647.34 : x
2. Step 2: Convert to fraction form
   6,540.38/9,817.59 = 2,647.34/x
3. Step 3: Cross multiply
   6,540.38x = 9,817.59 × 2,647.34
4. Step 4: Simplify right side
   6,540.38x = 25,990,498.71
5. Step 5: Solve for x
   x = 25,990,498.71/6,540.38
6. Step 6: Final answer
   x = 3,973.85