Finding the Fourth Proportional to 3,822.42, 5,274.71 and 2,143.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,822.42 : 5,274.71 = 2,143.71 : x
2. Step 2: Convert to fraction form
   3,822.42/5,274.71 = 2,143.71/x
3. Step 3: Cross multiply
   3,822.42x = 5,274.71 × 2,143.71
4. Step 4: Simplify right side
   3,822.42x = 11,307,411.48
5. Step 5: Solve for x
   x = 11,307,411.48/3,822.42
6. Step 6: Final answer
   x = 2,958.18