Finding the Fourth Proportional to 3,709.77, 5,121.33 and 2,137.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,709.77 : 5,121.33 = 2,137.56 : x
2. Step 2: Convert to fraction form
   3,709.77/5,121.33 = 2,137.56/x
3. Step 3: Cross multiply
   3,709.77x = 5,121.33 × 2,137.56
4. Step 4: Simplify right side
   3,709.77x = 10,947,150.15
5. Step 5: Solve for x
   x = 10,947,150.15/3,709.77
6. Step 6: Final answer
   x = 2,950.90