Finding the Fourth Proportional to 2,362.50, 3,260.25 and 1,431

Step by Step Solution

1. Step 1: Write the proportion equation
   2,362.50 : 3,260.25 = 1,431 : x
2. Step 2: Convert to fraction form
   2,362.50/3,260.25 = 1,431/x
3. Step 3: Cross multiply
   2,362.50x = 3,260.25 × 1,431
4. Step 4: Simplify right side
   2,362.50x = 4,665,417.75
5. Step 5: Solve for x
   x = 4,665,417.75/2,362.50
6. Step 6: Final answer
   x = 1,974.78