Finding the Fourth Proportional to 2,233.26, 3,081.90 and 1,238.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.26 : 3,081.90 = 1,238.51 : x
2. Step 2: Convert to fraction form
   2,233.26/3,081.90 = 1,238.51/x
3. Step 3: Cross multiply
   2,233.26x = 3,081.90 × 1,238.51
4. Step 4: Simplify right side
   2,233.26x = 3,816,948.56
5. Step 5: Solve for x
   x = 3,816,948.56/2,233.26
6. Step 6: Final answer
   x = 1,709.14