Finding the Fourth Proportional to 2,238.74, 3,089.50 and 1,354.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.74 : 3,089.50 = 1,354.40 : x
2. Step 2: Convert to fraction form
   2,238.74/3,089.50 = 1,354.40/x
3. Step 3: Cross multiply
   2,238.74x = 3,089.50 × 1,354.40
4. Step 4: Simplify right side
   2,238.74x = 4,184,399.97
5. Step 5: Solve for x
   x = 4,184,399.97/2,238.74
6. Step 6: Final answer
   x = 1,869.09