Finding the Fourth Proportional to 2,458.35, 3,384.69 and 2,290.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,458.35 : 3,384.69 = 2,290.68 : x
2. Step 2: Convert to fraction form
   2,458.35/3,384.69 = 2,290.68/x
3. Step 3: Cross multiply
   2,458.35x = 3,384.69 × 2,290.68
4. Step 4: Simplify right side
   2,458.35x = 7,753,233.10
5. Step 5: Solve for x
   x = 7,753,233.10/2,458.35
6. Step 6: Final answer
   x = 3,153.84