Finding the Fourth Proportional to 3,618.45, 5,422.46 and 3,227.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,618.45 : 5,422.46 = 3,227.49 : x
2. Step 2: Convert to fraction form
   3,618.45/5,422.46 = 3,227.49/x
3. Step 3: Cross multiply
   3,618.45x = 5,422.46 × 3,227.49
4. Step 4: Simplify right side
   3,618.45x = 17,500,919.29
5. Step 5: Solve for x
   x = 17,500,919.29/3,618.45
6. Step 6: Final answer
   x = 4,836.58