Finding the Fourth Proportional to 2,233.50, 3,082.25 and 1,238.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.50 : 3,082.25 = 1,238.80 : x
2. Step 2: Convert to fraction form
   2,233.50/3,082.25 = 1,238.80/x
3. Step 3: Cross multiply
   2,233.50x = 3,082.25 × 1,238.80
4. Step 4: Simplify right side
   2,233.50x = 3,818,284.22
5. Step 5: Solve for x
   x = 3,818,284.22/2,233.50
6. Step 6: Final answer
   x = 1,709.55