Finding the Fourth Proportional to 2,238.89, 3,355.81 and 1,140.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.89 : 3,355.81 = 1,140.94 : x
2. Step 2: Convert to fraction form
   2,238.89/3,355.81 = 1,140.94/x
3. Step 3: Cross multiply
   2,238.89x = 3,355.81 × 1,140.94
4. Step 4: Simplify right side
   2,238.89x = 3,828,766.62
5. Step 5: Solve for x
   x = 3,828,766.62/2,238.89
6. Step 6: Final answer
   x = 1,710.12