Finding the Fourth Proportional to 6,387.90, 9,581.89 and 2,227.89

Step by Step Solution

1. Step 1: Write the proportion equation
   6,387.90 : 9,581.89 = 2,227.89 : x
2. Step 2: Convert to fraction form
   6,387.90/9,581.89 = 2,227.89/x
3. Step 3: Cross multiply
   6,387.90x = 9,581.89 × 2,227.89
4. Step 4: Simplify right side
   6,387.90x = 21,347,396.91
5. Step 5: Solve for x
   x = 21,347,396.91/6,387.90
6. Step 6: Final answer
   x = 3,341.85