Finding the Fourth Proportional to 2,685.38, 4,028.12 and 737.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,685.38 : 4,028.12 = 737.57 : x
2. Step 2: Convert to fraction form
   2,685.38/4,028.12 = 737.57/x
3. Step 3: Cross multiply
   2,685.38x = 4,028.12 × 737.57
4. Step 4: Simplify right side
   2,685.38x = 2,971,016.78
5. Step 5: Solve for x
   x = 2,971,016.78/2,685.38
6. Step 6: Final answer
   x = 1,106.37