Finding the Fourth Proportional to 2,390.36, 3,581.69 and 2,300.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390.36 : 3,581.69 = 2,300.45 : x
2. Step 2: Convert to fraction form
   2,390.36/3,581.69 = 2,300.45/x
3. Step 3: Cross multiply
   2,390.36x = 3,581.69 × 2,300.45
4. Step 4: Simplify right side
   2,390.36x = 8,239,469.35
5. Step 5: Solve for x
   x = 8,239,469.35/2,390.36
6. Step 6: Final answer
   x = 3,446.96