Finding the Fourth Proportional to 2,121.57, 3,183.27 and 1,148.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,121.57 : 3,183.27 = 1,148.37 : x
2. Step 2: Convert to fraction form
   2,121.57/3,183.27 = 1,148.37/x
3. Step 3: Cross multiply
   2,121.57x = 3,183.27 × 1,148.37
4. Step 4: Simplify right side
   2,121.57x = 3,655,571.77
5. Step 5: Solve for x
   x = 3,655,571.77/2,121.57
6. Step 6: Final answer
   x = 1,723.05