Finding the Fourth Proportional to 2,550.10, 3,519.08 and 1,431.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.10 : 3,519.08 = 1,431.03 : x
2. Step 2: Convert to fraction form
   2,550.10/3,519.08 = 1,431.03/x
3. Step 3: Cross multiply
   2,550.10x = 3,519.08 × 1,431.03
4. Step 4: Simplify right side
   2,550.10x = 5,035,884.30
5. Step 5: Solve for x
   x = 5,035,884.30/2,550.10
6. Step 6: Final answer
   x = 1,974.78