Finding the Fourth Proportional to 2,540.56, 3,506.03 and 1,421.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,540.56 : 3,506.03 = 1,421.48 : x
2. Step 2: Convert to fraction form
   2,540.56/3,506.03 = 1,421.48/x
3. Step 3: Cross multiply
   2,540.56x = 3,506.03 × 1,421.48
4. Step 4: Simplify right side
   2,540.56x = 4,983,762.90
5. Step 5: Solve for x
   x = 4,983,762.90/2,540.56
6. Step 6: Final answer
   x = 1,961.68