Finding the Fourth Proportional to 2,517.27, 3,770.43 and 1,216

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.27 : 3,770.43 = 1,216 : x
2. Step 2: Convert to fraction form
   2,517.27/3,770.43 = 1,216/x
3. Step 3: Cross multiply
   2,517.27x = 3,770.43 × 1,216
4. Step 4: Simplify right side
   2,517.27x = 4,584,842.88
5. Step 5: Solve for x
   x = 4,584,842.88/2,517.27
6. Step 6: Final answer
   x = 1,821.36