Finding the Fourth Proportional to 2,288.09, 3,156.40 and 1,447.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.09 : 3,156.40 = 1,447.38 : x
2. Step 2: Convert to fraction form
   2,288.09/3,156.40 = 1,447.38/x
3. Step 3: Cross multiply
   2,288.09x = 3,156.40 × 1,447.38
4. Step 4: Simplify right side
   2,288.09x = 4,568,510.23
5. Step 5: Solve for x
   x = 4,568,510.23/2,288.09
6. Step 6: Final answer
   x = 1,996.65