Finding the Fourth Proportional to 2,517.47, 3,776.54 and 874.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.47 : 3,776.54 = 874.15 : x
2. Step 2: Convert to fraction form
   2,517.47/3,776.54 = 874.15/x
3. Step 3: Cross multiply
   2,517.47x = 3,776.54 × 874.15
4. Step 4: Simplify right side
   2,517.47x = 3,301,262.44
5. Step 5: Solve for x
   x = 3,301,262.44/2,517.47
6. Step 6: Final answer
   x = 1,311.34