Finding the Fourth Proportional to 2,233.14, 3,081.34 and 1,393.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.14 : 3,081.34 = 1,393.57 : x
2. Step 2: Convert to fraction form
   2,233.14/3,081.34 = 1,393.57/x
3. Step 3: Cross multiply
   2,233.14x = 3,081.34 × 1,393.57
4. Step 4: Simplify right side
   2,233.14x = 4,294,062.98
5. Step 5: Solve for x
   x = 4,294,062.98/2,233.14
6. Step 6: Final answer
   x = 1,922.88