Finding the Fourth Proportional to 2,604.69, 3,907.17 and 873.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,604.69 : 3,907.17 = 873.18 : x
2. Step 2: Convert to fraction form
   2,604.69/3,907.17 = 873.18/x
3. Step 3: Cross multiply
   2,604.69x = 3,907.17 × 873.18
4. Step 4: Simplify right side
   2,604.69x = 3,411,662.70
5. Step 5: Solve for x
   x = 3,411,662.70/2,604.69
6. Step 6: Final answer
   x = 1,309.82