Finding the Fourth Proportional to 3,111.24, 4,293.81 and 1,785.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.24 : 4,293.81 = 1,785.18 : x
2. Step 2: Convert to fraction form
   3,111.24/4,293.81 = 1,785.18/x
3. Step 3: Cross multiply
   3,111.24x = 4,293.81 × 1,785.18
4. Step 4: Simplify right side
   3,111.24x = 7,665,223.74
5. Step 5: Solve for x
   x = 7,665,223.74/3,111.24
6. Step 6: Final answer
   x = 2,463.72