Finding the Fourth Proportional to 2,543.43, 3,815.10 and 1,081.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.43 : 3,815.10 = 1,081.59 : x
2. Step 2: Convert to fraction form
   2,543.43/3,815.10 = 1,081.59/x
3. Step 3: Cross multiply
   2,543.43x = 3,815.10 × 1,081.59
4. Step 4: Simplify right side
   2,543.43x = 4,126,359.70
5. Step 5: Solve for x
   x = 4,126,359.70/2,543.43
6. Step 6: Final answer
   x = 1,622.36