Finding the Fourth Proportional to 3,654.51, 5,042.85 and 2,162.13

Step by Step Solution

1. Step 1: Write the proportion equation
   3,654.51 : 5,042.85 = 2,162.13 : x
2. Step 2: Convert to fraction form
   3,654.51/5,042.85 = 2,162.13/x
3. Step 3: Cross multiply
   3,654.51x = 5,042.85 × 2,162.13
4. Step 4: Simplify right side
   3,654.51x = 10,903,297.27
5. Step 5: Solve for x
   x = 10,903,297.27/3,654.51
6. Step 6: Final answer
   x = 2,983.52