Finding the Fourth Proportional to 2,389.86, 3,298.02 and 1,327.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.86 : 3,298.02 = 1,327.63 : x
2. Step 2: Convert to fraction form
   2,389.86/3,298.02 = 1,327.63/x
3. Step 3: Cross multiply
   2,389.86x = 3,298.02 × 1,327.63
4. Step 4: Simplify right side
   2,389.86x = 4,378,542.05
5. Step 5: Solve for x
   x = 4,378,542.05/2,389.86
6. Step 6: Final answer
   x = 1,832.13