Finding the Fourth Proportional to 2,233.68, 3,082.46 and 1,238.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.68 : 3,082.46 = 1,238.91 : x
2. Step 2: Convert to fraction form
   2,233.68/3,082.46 = 1,238.91/x
3. Step 3: Cross multiply
   2,233.68x = 3,082.46 × 1,238.91
4. Step 4: Simplify right side
   2,233.68x = 3,818,884.32
5. Step 5: Solve for x
   x = 3,818,884.32/2,233.68
6. Step 6: Final answer
   x = 1,709.68