Finding the Fourth Proportional to 3,776.94, 5,663.40 and 2,217.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,776.94 : 5,663.40 = 2,217.30 : x
2. Step 2: Convert to fraction form
   3,776.94/5,663.40 = 2,217.30/x
3. Step 3: Cross multiply
   3,776.94x = 5,663.40 × 2,217.30
4. Step 4: Simplify right side
   3,776.94x = 12,557,456.82
5. Step 5: Solve for x
   x = 12,557,456.82/3,776.94
6. Step 6: Final answer
   x = 3,324.77