Finding the Fourth Proportional to 2,558.69, 3,834.87 and 1,325.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,558.69 : 3,834.87 = 1,325.39 : x
2. Step 2: Convert to fraction form
   2,558.69/3,834.87 = 1,325.39/x
3. Step 3: Cross multiply
   2,558.69x = 3,834.87 × 1,325.39
4. Step 4: Simplify right side
   2,558.69x = 5,082,679.17
5. Step 5: Solve for x
   x = 5,082,679.17/2,558.69
6. Step 6: Final answer
   x = 1,986.44