Finding the Fourth Proportional to 2,183.16, 3,012.02 and 1,238.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,183.16 : 3,012.02 = 1,238.84 : x
2. Step 2: Convert to fraction form
   2,183.16/3,012.02 = 1,238.84/x
3. Step 3: Cross multiply
   2,183.16x = 3,012.02 × 1,238.84
4. Step 4: Simplify right side
   2,183.16x = 3,731,410.86
5. Step 5: Solve for x
   x = 3,731,410.86/2,183.16
6. Step 6: Final answer
   x = 1,709.18