Finding the Fourth Proportional to 2,289.46, 3,159.50 and 1,294.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,289.46 : 3,159.50 = 1,294.79 : x
2. Step 2: Convert to fraction form
   2,289.46/3,159.50 = 1,294.79/x
3. Step 3: Cross multiply
   2,289.46x = 3,159.50 × 1,294.79
4. Step 4: Simplify right side
   2,289.46x = 4,090,870.38
5. Step 5: Solve for x
   x = 4,090,870.38/2,289.46
6. Step 6: Final answer
   x = 1,786.83