Finding the Fourth Proportional to 2,543.58, 3,809.96 and 1,447.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.58 : 3,809.96 = 1,447.38 : x
2. Step 2: Convert to fraction form
   2,543.58/3,809.96 = 1,447.38/x
3. Step 3: Cross multiply
   2,543.58x = 3,809.96 × 1,447.38
4. Step 4: Simplify right side
   2,543.58x = 5,514,459.90
5. Step 5: Solve for x
   x = 5,514,459.90/2,543.58
6. Step 6: Final answer
   x = 2,167.99