Finding the Fourth Proportional to 3,938.82, 5,435.64 and 2,260.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,938.82 : 5,435.64 = 2,260.50 : x
2. Step 2: Convert to fraction form
   3,938.82/5,435.64 = 2,260.50/x
3. Step 3: Cross multiply
   3,938.82x = 5,435.64 × 2,260.50
4. Step 4: Simplify right side
   3,938.82x = 12,287,264.22
5. Step 5: Solve for x
   x = 12,287,264.22/3,938.82
6. Step 6: Final answer
   x = 3,119.53