Finding the Fourth Proportional to 2,389.47, 3,297.05 and 1,327.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.47 : 3,297.05 = 1,327.06 : x
2. Step 2: Convert to fraction form
   2,389.47/3,297.05 = 1,327.06/x
3. Step 3: Cross multiply
   2,389.47x = 3,297.05 × 1,327.06
4. Step 4: Simplify right side
   2,389.47x = 4,375,383.17
5. Step 5: Solve for x
   x = 4,375,383.17/2,389.47
6. Step 6: Final answer
   x = 1,831.11