Finding the Fourth Proportional to 3,625.25, 5,438.73 and 1,028.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,625.25 : 5,438.73 = 1,028.12 : x
2. Step 2: Convert to fraction form
   3,625.25/5,438.73 = 1,028.12/x
3. Step 3: Cross multiply
   3,625.25x = 5,438.73 × 1,028.12
4. Step 4: Simplify right side
   3,625.25x = 5,591,667.09
5. Step 5: Solve for x
   x = 5,591,667.09/3,625.25
6. Step 6: Final answer
   x = 1,542.42