Finding the Fourth Proportional to 2,761.72, 4,143.61 and 1,281.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,761.72 : 4,143.61 = 1,281.67 : x
2. Step 2: Convert to fraction form
   2,761.72/4,143.61 = 1,281.67/x
3. Step 3: Cross multiply
   2,761.72x = 4,143.61 × 1,281.67
4. Step 4: Simplify right side
   2,761.72x = 5,310,747.97
5. Step 5: Solve for x
   x = 5,310,747.97/2,761.72
6. Step 6: Final answer
   x = 1,922.99