Finding the Fourth Proportional to 2,540.04, 3,505.25 and 1,421.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,540.04 : 3,505.25 = 1,421.03 : x
2. Step 2: Convert to fraction form
   2,540.04/3,505.25 = 1,421.03/x
3. Step 3: Cross multiply
   2,540.04x = 3,505.25 × 1,421.03
4. Step 4: Simplify right side
   2,540.04x = 4,981,040.78
5. Step 5: Solve for x
   x = 4,981,040.78/2,540.04
6. Step 6: Final answer
   x = 1,961.01