Finding the Fourth Proportional to 3,718.71, 5,131.78 and 2,146.77

Step by Step Solution

1. Step 1: Write the proportion equation
   3,718.71 : 5,131.78 = 2,146.77 : x
2. Step 2: Convert to fraction form
   3,718.71/5,131.78 = 2,146.77/x
3. Step 3: Cross multiply
   3,718.71x = 5,131.78 × 2,146.77
4. Step 4: Simplify right side
   3,718.71x = 11,016,745.98
5. Step 5: Solve for x
   x = 11,016,745.98/3,718.71
6. Step 6: Final answer
   x = 2,962.52