Finding the Fourth Proportional to 2,648.08, 3,966.73 and 1,720.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.08 : 3,966.73 = 1,720.82 : x
2. Step 2: Convert to fraction form
   2,648.08/3,966.73 = 1,720.82/x
3. Step 3: Cross multiply
   2,648.08x = 3,966.73 × 1,720.82
4. Step 4: Simplify right side
   2,648.08x = 6,826,028.32
5. Step 5: Solve for x
   x = 6,826,028.32/2,648.08
6. Step 6: Final answer
   x = 2,577.73