Finding the Fourth Proportional to 3,377.48, 5,064.72 and 2,143.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,377.48 : 5,064.72 = 2,143.76 : x
2. Step 2: Convert to fraction form
   3,377.48/5,064.72 = 2,143.76/x
3. Step 3: Cross multiply
   3,377.48x = 5,064.72 × 2,143.76
4. Step 4: Simplify right side
   3,377.48x = 10,857,544.15
5. Step 5: Solve for x
   x = 10,857,544.15/3,377.48
6. Step 6: Final answer
   x = 3,214.69