Finding the Fourth Proportional to 2,569.69, 3,546.17 and 1,521.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,569.69 : 3,546.17 = 1,521.75 : x
2. Step 2: Convert to fraction form
   2,569.69/3,546.17 = 1,521.75/x
3. Step 3: Cross multiply
   2,569.69x = 3,546.17 × 1,521.75
4. Step 4: Simplify right side
   2,569.69x = 5,396,384.20
5. Step 5: Solve for x
   x = 5,396,384.20/2,569.69
6. Step 6: Final answer
   x = 2,100.01