Finding the Fourth Proportional to 2,642.59, 3,638.48 and 2,243.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642.59 : 3,638.48 = 2,243.43 : x
2. Step 2: Convert to fraction form
   2,642.59/3,638.48 = 2,243.43/x
3. Step 3: Cross multiply
   2,642.59x = 3,638.48 × 2,243.43
4. Step 4: Simplify right side
   2,642.59x = 8,162,654.93
5. Step 5: Solve for x
   x = 8,162,654.93/2,642.59
6. Step 6: Final answer
   x = 3,088.88