Finding the Fourth Proportional to 2,561.72, 3,834.33 and 1,327.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.72 : 3,834.33 = 1,327.43 : x
2. Step 2: Convert to fraction form
   2,561.72/3,834.33 = 1,327.43/x
3. Step 3: Cross multiply
   2,561.72x = 3,834.33 × 1,327.43
4. Step 4: Simplify right side
   2,561.72x = 5,089,804.67
5. Step 5: Solve for x
   x = 5,089,804.67/2,561.72
6. Step 6: Final answer
   x = 1,986.87