Finding the Fourth Proportional to 3,225.38, 4,831.74 and 2,126.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,225.38 : 4,831.74 = 2,126.42 : x
2. Step 2: Convert to fraction form
   3,225.38/4,831.74 = 2,126.42/x
3. Step 3: Cross multiply
   3,225.38x = 4,831.74 × 2,126.42
4. Step 4: Simplify right side
   3,225.38x = 10,274,308.57
5. Step 5: Solve for x
   x = 10,274,308.57/3,225.38
6. Step 6: Final answer
   x = 3,185.46