Finding the Fourth Proportional to 2,517.49, 3,776.28 and 874.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.49 : 3,776.28 = 874.08 : x
2. Step 2: Convert to fraction form
   2,517.49/3,776.28 = 874.08/x
3. Step 3: Cross multiply
   2,517.49x = 3,776.28 × 874.08
4. Step 4: Simplify right side
   2,517.49x = 3,300,770.82
5. Step 5: Solve for x
   x = 3,300,770.82/2,517.49
6. Step 6: Final answer
   x = 1,311.14