Finding the Fourth Proportional to 2,565.48, 3,540.15 and 1,503.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,565.48 : 3,540.15 = 1,503.21 : x
2. Step 2: Convert to fraction form
   2,565.48/3,540.15 = 1,503.21/x
3. Step 3: Cross multiply
   2,565.48x = 3,540.15 × 1,503.21
4. Step 4: Simplify right side
   2,565.48x = 5,321,588.88
5. Step 5: Solve for x
   x = 5,321,588.88/2,565.48
6. Step 6: Final answer
   x = 2,074.31