Finding the Fourth Proportional to 2,604.69, 3,907.31 and 1,144.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,604.69 : 3,907.31 = 1,144.80 : x
2. Step 2: Convert to fraction form
   2,604.69/3,907.31 = 1,144.80/x
3. Step 3: Cross multiply
   2,604.69x = 3,907.31 × 1,144.80
4. Step 4: Simplify right side
   2,604.69x = 4,473,082.76
5. Step 5: Solve for x
   x = 4,473,082.76/2,604.69
6. Step 6: Final answer
   x = 1,717.32