Finding the Fourth Proportional to 2,557.18, 3,832.63 and 1,323.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557.18 : 3,832.63 = 1,323.89 : x
2. Step 2: Convert to fraction form
   2,557.18/3,832.63 = 1,323.89/x
3. Step 3: Cross multiply
   2,557.18x = 3,832.63 × 1,323.89
4. Step 4: Simplify right side
   2,557.18x = 5,073,958.06
5. Step 5: Solve for x
   x = 5,073,958.06/2,557.18
6. Step 6: Final answer
   x = 1,984.20