Finding the Fourth Proportional to 2,233.35, 3,081.86 and 1,238.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.35 : 3,081.86 = 1,238.66 : x
2. Step 2: Convert to fraction form
   2,233.35/3,081.86 = 1,238.66/x
3. Step 3: Cross multiply
   2,233.35x = 3,081.86 × 1,238.66
4. Step 4: Simplify right side
   2,233.35x = 3,817,355.11
5. Step 5: Solve for x
   x = 3,817,355.11/2,233.35
6. Step 6: Final answer
   x = 1,709.25