Finding the Fourth Proportional to 3,111.27, 4,293.39 and 1,785.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.27 : 4,293.39 = 1,785.42 : x
2. Step 2: Convert to fraction form
   3,111.27/4,293.39 = 1,785.42/x
3. Step 3: Cross multiply
   3,111.27x = 4,293.39 × 1,785.42
4. Step 4: Simplify right side
   3,111.27x = 7,665,504.37
5. Step 5: Solve for x
   x = 7,665,504.37/3,111.27
6. Step 6: Final answer
   x = 2,463.79