Finding the Fourth Proportional to 2,518.22, 3,777.71 and 874.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518.22 : 3,777.71 = 874.33 : x
2. Step 2: Convert to fraction form
   2,518.22/3,777.71 = 874.33/x
3. Step 3: Cross multiply
   2,518.22x = 3,777.71 × 874.33
4. Step 4: Simplify right side
   2,518.22x = 3,302,951.37
5. Step 5: Solve for x
   x = 3,302,951.37/2,518.22
6. Step 6: Final answer
   x = 1,311.62