Finding the Fourth Proportional to 6,491.16, 9,738.15 and 2,109.06

Step by Step Solution

1. Step 1: Write the proportion equation
   6,491.16 : 9,738.15 = 2,109.06 : x
2. Step 2: Convert to fraction form
   6,491.16/9,738.15 = 2,109.06/x
3. Step 3: Cross multiply
   6,491.16x = 9,738.15 × 2,109.06
4. Step 4: Simplify right side
   6,491.16x = 20,538,342.64
5. Step 5: Solve for x
   x = 20,538,342.64/6,491.16
6. Step 6: Final answer
   x = 3,164.05