Finding the Fourth Proportional to 4,949.82, 7,419.60 and 1,661.81

Step by Step Solution

1. Step 1: Write the proportion equation
   4,949.82 : 7,419.60 = 1,661.81 : x
2. Step 2: Convert to fraction form
   4,949.82/7,419.60 = 1,661.81/x
3. Step 3: Cross multiply
   4,949.82x = 7,419.60 × 1,661.81
4. Step 4: Simplify right side
   4,949.82x = 12,329,928.38
5. Step 5: Solve for x
   x = 12,329,928.38/4,949.82
6. Step 6: Final answer
   x = 2,490.99