Finding the Fourth Proportional to 3,869.97, 5,338.27 and 2,472.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,869.97 : 5,338.27 = 2,472.72 : x
2. Step 2: Convert to fraction form
   3,869.97/5,338.27 = 2,472.72/x
3. Step 3: Cross multiply
   3,869.97x = 5,338.27 × 2,472.72
4. Step 4: Simplify right side
   3,869.97x = 13,200,046.99
5. Step 5: Solve for x
   x = 13,200,046.99/3,869.97
6. Step 6: Final answer
   x = 3,410.89