Finding the Fourth Proportional to 3,483.91, 5,222.21 and 1,143.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,483.91 : 5,222.21 = 1,143.31 : x
2. Step 2: Convert to fraction form
   3,483.91/5,222.21 = 1,143.31/x
3. Step 3: Cross multiply
   3,483.91x = 5,222.21 × 1,143.31
4. Step 4: Simplify right side
   3,483.91x = 5,970,599.20
5. Step 5: Solve for x
   x = 5,970,599.20/3,483.91
6. Step 6: Final answer
   x = 1,713.76