Finding the Fourth Proportional to 2,535.50, 3,499 and 1,431.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,535.50 : 3,499 = 1,431.50 : x
2. Step 2: Convert to fraction form
   2,535.50/3,499 = 1,431.50/x
3. Step 3: Cross multiply
   2,535.50x = 3,499 × 1,431.50
4. Step 4: Simplify right side
   2,535.50x = 5,008,818.50
5. Step 5: Solve for x
   x = 5,008,818.50/2,535.50
6. Step 6: Final answer
   x = 1,975.48