Finding the Fourth Proportional to 3,616.28, 4,991.00 and 2,290.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,616.28 : 4,991.00 = 2,290.10 : x
2. Step 2: Convert to fraction form
   3,616.28/4,991.00 = 2,290.10/x
3. Step 3: Cross multiply
   3,616.28x = 4,991.00 × 2,290.10
4. Step 4: Simplify right side
   3,616.28x = 11,429,852.69
5. Step 5: Solve for x
   x = 11,429,852.69/3,616.28
6. Step 6: Final answer
   x = 3,160.67