Finding the Fourth Proportional to 2,183.16, 3,011.78 and 1,298.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,183.16 : 3,011.78 = 1,298.48 : x
2. Step 2: Convert to fraction form
   2,183.16/3,011.78 = 1,298.48/x
3. Step 3: Cross multiply
   2,183.16x = 3,011.78 × 1,298.48
4. Step 4: Simplify right side
   2,183.16x = 3,910,736.09
5. Step 5: Solve for x
   x = 3,910,736.09/2,183.16
6. Step 6: Final answer
   x = 1,791.32