Finding the Fourth Proportional to 3,893.72, 5,841.81 and 2,663.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,893.72 : 5,841.81 = 2,663.55 : x
2. Step 2: Convert to fraction form
   3,893.72/5,841.81 = 2,663.55/x
3. Step 3: Cross multiply
   3,893.72x = 5,841.81 × 2,663.55
4. Step 4: Simplify right side
   3,893.72x = 15,559,953.03
5. Step 5: Solve for x
   x = 15,559,953.03/3,893.72
6. Step 6: Final answer
   x = 3,996.17