Finding the Fourth Proportional to 2,396.05, 3,587.40 and 1,223.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,396.05 : 3,587.40 = 1,223.53 : x
2. Step 2: Convert to fraction form
   2,396.05/3,587.40 = 1,223.53/x
3. Step 3: Cross multiply
   2,396.05x = 3,587.40 × 1,223.53
4. Step 4: Simplify right side
   2,396.05x = 4,389,291.52
5. Step 5: Solve for x
   x = 4,389,291.52/2,396.05
6. Step 6: Final answer
   x = 1,831.89