Finding the Fourth Proportional to 2,802.82, 3,867.85 and 1,543.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,802.82 : 3,867.85 = 1,543.85 : x
2. Step 2: Convert to fraction form
   2,802.82/3,867.85 = 1,543.85/x
3. Step 3: Cross multiply
   2,802.82x = 3,867.85 × 1,543.85
4. Step 4: Simplify right side
   2,802.82x = 5,971,380.22
5. Step 5: Solve for x
   x = 5,971,380.22/2,802.82
6. Step 6: Final answer
   x = 2,130.49