Finding the Fourth Proportional to 2,389.97, 3,298.04 and 1,327.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.97 : 3,298.04 = 1,327.80 : x
2. Step 2: Convert to fraction form
   2,389.97/3,298.04 = 1,327.80/x
3. Step 3: Cross multiply
   2,389.97x = 3,298.04 × 1,327.80
4. Step 4: Simplify right side
   2,389.97x = 4,379,139.59
5. Step 5: Solve for x
   x = 4,379,139.59/2,389.97
6. Step 6: Final answer
   x = 1,832.30