Finding the Fourth Proportional to 3,443.82, 5,161.37 and 1,688.41

Step by Step Solution

1. Step 1: Write the proportion equation
   3,443.82 : 5,161.37 = 1,688.41 : x
2. Step 2: Convert to fraction form
   3,443.82/5,161.37 = 1,688.41/x
3. Step 3: Cross multiply
   3,443.82x = 5,161.37 × 1,688.41
4. Step 4: Simplify right side
   3,443.82x = 8,714,474.47
5. Step 5: Solve for x
   x = 8,714,474.47/3,443.82
6. Step 6: Final answer
   x = 2,530.47