Finding the Fourth Proportional to 2,603.55, 3,895.61 and 2,574.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603.55 : 3,895.61 = 2,574.39 : x
2. Step 2: Convert to fraction form
   2,603.55/3,895.61 = 2,574.39/x
3. Step 3: Cross multiply
   2,603.55x = 3,895.61 × 2,574.39
4. Step 4: Simplify right side
   2,603.55x = 10,028,806.56
5. Step 5: Solve for x
   x = 10,028,806.56/2,603.55
6. Step 6: Final answer
   x = 3,851.97