Finding the Fourth Proportional to 2,512.71, 3,771.38 and 1,281

Step by Step Solution

1. Step 1: Write the proportion equation
   2,512.71 : 3,771.38 = 1,281 : x
2. Step 2: Convert to fraction form
   2,512.71/3,771.38 = 1,281/x
3. Step 3: Cross multiply
   2,512.71x = 3,771.38 × 1,281
4. Step 4: Simplify right side
   2,512.71x = 4,831,137.78
5. Step 5: Solve for x
   x = 4,831,137.78/2,512.71
6. Step 6: Final answer
   x = 1,922.68