Finding the Fourth Proportional to 2,662.13, 3,673.74 and 1,543.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.13 : 3,673.74 = 1,543.28 : x
2. Step 2: Convert to fraction form
   2,662.13/3,673.74 = 1,543.28/x
3. Step 3: Cross multiply
   2,662.13x = 3,673.74 × 1,543.28
4. Step 4: Simplify right side
   2,662.13x = 5,669,609.47
5. Step 5: Solve for x
   x = 5,669,609.47/2,662.13
6. Step 6: Final answer
   x = 2,129.73