Finding the Fourth Proportional to 2,733.39, 4,081.53 and 2,171.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,733.39 : 4,081.53 = 2,171.78 : x
2. Step 2: Convert to fraction form
   2,733.39/4,081.53 = 2,171.78/x
3. Step 3: Cross multiply
   2,733.39x = 4,081.53 × 2,171.78
4. Step 4: Simplify right side
   2,733.39x = 8,864,164.82
5. Step 5: Solve for x
   x = 8,864,164.82/2,733.39
6. Step 6: Final answer
   x = 3,242.92