Finding the Fourth Proportional to 2,569.25, 3,545.61 and 1,521.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,569.25 : 3,545.61 = 1,521.56 : x
2. Step 2: Convert to fraction form
   2,569.25/3,545.61 = 1,521.56/x
3. Step 3: Cross multiply
   2,569.25x = 3,545.61 × 1,521.56
4. Step 4: Simplify right side
   2,569.25x = 5,394,858.35
5. Step 5: Solve for x
   x = 5,394,858.35/2,569.25
6. Step 6: Final answer
   x = 2,099.78