Finding the Fourth Proportional to 2,802.86, 3,867.78 and 1,543.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,802.86 : 3,867.78 = 1,543.86 : x
2. Step 2: Convert to fraction form
   2,802.86/3,867.78 = 1,543.86/x
3. Step 3: Cross multiply
   2,802.86x = 3,867.78 × 1,543.86
4. Step 4: Simplify right side
   2,802.86x = 5,971,310.83
5. Step 5: Solve for x
   x = 5,971,310.83/2,802.86
6. Step 6: Final answer
   x = 2,130.44