Finding the Fourth Proportional to 2,550.81, 3,519.83 and 1,431.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.81 : 3,519.83 = 1,431.52 : x
2. Step 2: Convert to fraction form
   2,550.81/3,519.83 = 1,431.52/x
3. Step 3: Cross multiply
   2,550.81x = 3,519.83 × 1,431.52
4. Step 4: Simplify right side
   2,550.81x = 5,038,707.04
5. Step 5: Solve for x
   x = 5,038,707.04/2,550.81
6. Step 6: Final answer
   x = 1,975.34