Finding the Fourth Proportional to 2,643.06, 3,982.25 and 2,393.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.06 : 3,982.25 = 2,393.22 : x
2. Step 2: Convert to fraction form
   2,643.06/3,982.25 = 2,393.22/x
3. Step 3: Cross multiply
   2,643.06x = 3,982.25 × 2,393.22
4. Step 4: Simplify right side
   2,643.06x = 9,530,388.38
5. Step 5: Solve for x
   x = 9,530,388.38/2,643.06
6. Step 6: Final answer
   x = 3,605.82