Finding the Fourth Proportional to 3,223.61, 4,834.71 and 1,143.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,223.61 : 4,834.71 = 1,143.68 : x
2. Step 2: Convert to fraction form
   3,223.61/4,834.71 = 1,143.68/x
3. Step 3: Cross multiply
   3,223.61x = 4,834.71 × 1,143.68
4. Step 4: Simplify right side
   3,223.61x = 5,529,336.96
5. Step 5: Solve for x
   x = 5,529,336.96/3,223.61
6. Step 6: Final answer
   x = 1,715.27