Finding the Fourth Proportional to 2,439.82, 3,365.58 and 1,543.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439.82 : 3,365.58 = 1,543.29 : x
2. Step 2: Convert to fraction form
   2,439.82/3,365.58 = 1,543.29/x
3. Step 3: Cross multiply
   2,439.82x = 3,365.58 × 1,543.29
4. Step 4: Simplify right side
   2,439.82x = 5,194,059.12
5. Step 5: Solve for x
   x = 5,194,059.12/2,439.82
6. Step 6: Final answer
   x = 2,128.87