Finding the Fourth Proportional to 3,443.56, 5,162.77 and 1,688.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,443.56 : 5,162.77 = 1,688.02 : x
2. Step 2: Convert to fraction form
   3,443.56/5,162.77 = 1,688.02/x
3. Step 3: Cross multiply
   3,443.56x = 5,162.77 × 1,688.02
4. Step 4: Simplify right side
   3,443.56x = 8,714,859.02
5. Step 5: Solve for x
   x = 8,714,859.02/3,443.56
6. Step 6: Final answer
   x = 2,530.77