Finding the Fourth Proportional to 2,238.59, 3,089.65 and 1,294.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.59 : 3,089.65 = 1,294.25 : x
2. Step 2: Convert to fraction form
   2,238.59/3,089.65 = 1,294.25/x
3. Step 3: Cross multiply
   2,238.59x = 3,089.65 × 1,294.25
4. Step 4: Simplify right side
   2,238.59x = 3,998,779.51
5. Step 5: Solve for x
   x = 3,998,779.51/2,238.59
6. Step 6: Final answer
   x = 1,786.29