Finding the Fourth Proportional to 2,631.56, 3,945.78 and 2,241.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.56 : 3,945.78 = 2,241.74 : x
2. Step 2: Convert to fraction form
   2,631.56/3,945.78 = 2,241.74/x
3. Step 3: Cross multiply
   2,631.56x = 3,945.78 × 2,241.74
4. Step 4: Simplify right side
   2,631.56x = 8,845,422.72
5. Step 5: Solve for x
   x = 8,845,422.72/2,631.56
6. Step 6: Final answer
   x = 3,361.29