Finding the Fourth Proportional to 2,509.19, 3,462.39 and 1,447.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,509.19 : 3,462.39 = 1,447.31 : x
2. Step 2: Convert to fraction form
   2,509.19/3,462.39 = 1,447.31/x
3. Step 3: Cross multiply
   2,509.19x = 3,462.39 × 1,447.31
4. Step 4: Simplify right side
   2,509.19x = 5,011,151.67
5. Step 5: Solve for x
   x = 5,011,151.67/2,509.19
6. Step 6: Final answer
   x = 1,997.12