Finding the Fourth Proportional to 2,778.24, 3,831.06 and 2,404.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,778.24 : 3,831.06 = 2,404.08 : x
2. Step 2: Convert to fraction form
   2,778.24/3,831.06 = 2,404.08/x
3. Step 3: Cross multiply
   2,778.24x = 3,831.06 × 2,404.08
4. Step 4: Simplify right side
   2,778.24x = 9,210,174.72
5. Step 5: Solve for x
   x = 9,210,174.72/2,778.24
6. Step 6: Final answer
   x = 3,315.11