Finding the Fourth Proportional to 2,802.37, 3,867.28 and 1,543.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,802.37 : 3,867.28 = 1,543.43 : x
2. Step 2: Convert to fraction form
   2,802.37/3,867.28 = 1,543.43/x
3. Step 3: Cross multiply
   2,802.37x = 3,867.28 × 1,543.43
4. Step 4: Simplify right side
   2,802.37x = 5,968,848.92
5. Step 5: Solve for x
   x = 5,968,848.92/2,802.37
6. Step 6: Final answer
   x = 2,129.93