Finding the Fourth Proportional to 3,977.34, 5,488.65 and 2,208.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,977.34 : 5,488.65 = 2,208.89 : x
2. Step 2: Convert to fraction form
   3,977.34/5,488.65 = 2,208.89/x
3. Step 3: Cross multiply
   3,977.34x = 5,488.65 × 2,208.89
4. Step 4: Simplify right side
   3,977.34x = 12,123,796.66
5. Step 5: Solve for x
   x = 12,123,796.66/3,977.34
6. Step 6: Final answer
   x = 3,048.22