Finding the Fourth Proportional to 2,557.64, 3,834.52 and 1,324.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557.64 : 3,834.52 = 1,324.27 : x
2. Step 2: Convert to fraction form
   2,557.64/3,834.52 = 1,324.27/x
3. Step 3: Cross multiply
   2,557.64x = 3,834.52 × 1,324.27
4. Step 4: Simplify right side
   2,557.64x = 5,077,927.16
5. Step 5: Solve for x
   x = 5,077,927.16/2,557.64
6. Step 6: Final answer
   x = 1,985.39