Finding the Fourth Proportional to 2,569.76, 3,546.24 and 1,521.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,569.76 : 3,546.24 = 1,521.84 : x
2. Step 2: Convert to fraction form
   2,569.76/3,546.24 = 1,521.84/x
3. Step 3: Cross multiply
   2,569.76x = 3,546.24 × 1,521.84
4. Step 4: Simplify right side
   2,569.76x = 5,396,809.88
5. Step 5: Solve for x
   x = 5,396,809.88/2,569.76
6. Step 6: Final answer
   x = 2,100.12