Finding the Fourth Proportional to 2,685.87, 4,028.18 and 738.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,685.87 : 4,028.18 = 738.27 : x
2. Step 2: Convert to fraction form
   2,685.87/4,028.18 = 738.27/x
3. Step 3: Cross multiply
   2,685.87x = 4,028.18 × 738.27
4. Step 4: Simplify right side
   2,685.87x = 2,973,880.76
5. Step 5: Solve for x
   x = 2,973,880.76/2,685.87
6. Step 6: Final answer
   x = 1,107.23