Finding the Fourth Proportional to 2,044.50, 2,821.41 and 1,216.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,044.50 : 2,821.41 = 1,216.50 : x
2. Step 2: Convert to fraction form
   2,044.50/2,821.41 = 1,216.50/x
3. Step 3: Cross multiply
   2,044.50x = 2,821.41 × 1,216.50
4. Step 4: Simplify right side
   2,044.50x = 3,432,245.27
5. Step 5: Solve for x
   x = 3,432,245.27/2,044.50
6. Step 6: Final answer
   x = 1,678.77