Finding the Fourth Proportional to 3,223.50, 4,831.71 and 1,663.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,223.50 : 4,831.71 = 1,663.61 : x
2. Step 2: Convert to fraction form
   3,223.50/4,831.71 = 1,663.61/x
3. Step 3: Cross multiply
   3,223.50x = 4,831.71 × 1,663.61
4. Step 4: Simplify right side
   3,223.50x = 8,038,077.85
5. Step 5: Solve for x
   x = 8,038,077.85/3,223.50
6. Step 6: Final answer
   x = 2,493.59