Finding the Fourth Proportional to 2,802.27, 3,867.15 and 1,543.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,802.27 : 3,867.15 = 1,543.45 : x
2. Step 2: Convert to fraction form
   2,802.27/3,867.15 = 1,543.45/x
3. Step 3: Cross multiply
   2,802.27x = 3,867.15 × 1,543.45
4. Step 4: Simplify right side
   2,802.27x = 5,968,752.67
5. Step 5: Solve for x
   x = 5,968,752.67/2,802.27
6. Step 6: Final answer
   x = 2,129.97