Finding the Fourth Proportional to 2,233.06, 3,081.80 and 1,238.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.06 : 3,081.80 = 1,238.42 : x
2. Step 2: Convert to fraction form
   2,233.06/3,081.80 = 1,238.42/x
3. Step 3: Cross multiply
   2,233.06x = 3,081.80 × 1,238.42
4. Step 4: Simplify right side
   2,233.06x = 3,816,562.76
5. Step 5: Solve for x
   x = 3,816,562.76/2,233.06
6. Step 6: Final answer
   x = 1,709.12