Finding the Fourth Proportional to 3,974.00, 5,960.91 and 2,128.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,974.00 : 5,960.91 = 2,128.71 : x
2. Step 2: Convert to fraction form
   3,974.00/5,960.91 = 2,128.71/x
3. Step 3: Cross multiply
   3,974.00x = 5,960.91 × 2,128.71
4. Step 4: Simplify right side
   3,974.00x = 12,689,067.09
5. Step 5: Solve for x
   x = 12,689,067.09/3,974.00
6. Step 6: Final answer
   x = 3,193.03