Finding the Fourth Proportional to 2,238.99, 3,089.79 and 1,294.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.99 : 3,089.79 = 1,294.77 : x
2. Step 2: Convert to fraction form
   2,238.99/3,089.79 = 1,294.77/x
3. Step 3: Cross multiply
   2,238.99x = 3,089.79 × 1,294.77
4. Step 4: Simplify right side
   2,238.99x = 4,000,567.40
5. Step 5: Solve for x
   x = 4,000,567.40/2,238.99
6. Step 6: Final answer
   x = 1,786.77