Finding the Fourth Proportional to 6,484.29, 8,947.82 and 3,831.20

Step by Step Solution

1. Step 1: Write the proportion equation
   6,484.29 : 8,947.82 = 3,831.20 : x
2. Step 2: Convert to fraction form
   6,484.29/8,947.82 = 3,831.20/x
3. Step 3: Cross multiply
   6,484.29x = 8,947.82 × 3,831.20
4. Step 4: Simplify right side
   6,484.29x = 34,280,824.09
5. Step 5: Solve for x
   x = 34,280,824.09/6,484.29
6. Step 6: Final answer
   x = 5,286.75