Finding the Fourth Proportional to 2,583.98, 3,565.91 and 1,521.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,583.98 : 3,565.91 = 1,521.78 : x
2. Step 2: Convert to fraction form
   2,583.98/3,565.91 = 1,521.78/x
3. Step 3: Cross multiply
   2,583.98x = 3,565.91 × 1,521.78
4. Step 4: Simplify right side
   2,583.98x = 5,426,530.52
5. Step 5: Solve for x
   x = 5,426,530.52/2,583.98
6. Step 6: Final answer
   x = 2,100.07