Finding the Fourth Proportional to 2,855.72, 3,940.42 and 1,596.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,855.72 : 3,940.42 = 1,596.71 : x
2. Step 2: Convert to fraction form
   2,855.72/3,940.42 = 1,596.71/x
3. Step 3: Cross multiply
   2,855.72x = 3,940.42 × 1,596.71
4. Step 4: Simplify right side
   2,855.72x = 6,291,708.02
5. Step 5: Solve for x
   x = 6,291,708.02/2,855.72
6. Step 6: Final answer
   x = 2,203.19