Finding the Fourth Proportional to 2,238.58, 3,089.01 and 1,294.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.58 : 3,089.01 = 1,294.23 : x
2. Step 2: Convert to fraction form
   2,238.58/3,089.01 = 1,294.23/x
3. Step 3: Cross multiply
   2,238.58x = 3,089.01 × 1,294.23
4. Step 4: Simplify right side
   2,238.58x = 3,997,867.50
5. Step 5: Solve for x
   x = 3,997,867.50/2,238.58
6. Step 6: Final answer
   x = 1,785.89