Finding the Fourth Proportional to 3,266.82, 4,896.72 and 1,620.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,266.82 : 4,896.72 = 1,620.09 : x
2. Step 2: Convert to fraction form
   3,266.82/4,896.72 = 1,620.09/x
3. Step 3: Cross multiply
   3,266.82x = 4,896.72 × 1,620.09
4. Step 4: Simplify right side
   3,266.82x = 7,933,127.10
5. Step 5: Solve for x
   x = 7,933,127.10/3,266.82
6. Step 6: Final answer
   x = 2,428.39