Finding the Fourth Proportional to 3,581.15, 5,366.52 and 2,543.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,581.15 : 5,366.52 = 2,543.18 : x
2. Step 2: Convert to fraction form
   3,581.15/5,366.52 = 2,543.18/x
3. Step 3: Cross multiply
   3,581.15x = 5,366.52 × 2,543.18
4. Step 4: Simplify right side
   3,581.15x = 13,648,026.33
5. Step 5: Solve for x
   x = 13,648,026.33/3,581.15
6. Step 6: Final answer
   x = 3,811.07