Finding the Fourth Proportional to 2,593.72, 3,578.70 and 1,663.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,593.72 : 3,578.70 = 1,663.48 : x
2. Step 2: Convert to fraction form
   2,593.72/3,578.70 = 1,663.48/x
3. Step 3: Cross multiply
   2,593.72x = 3,578.70 × 1,663.48
4. Step 4: Simplify right side
   2,593.72x = 5,953,095.88
5. Step 5: Solve for x
   x = 5,953,095.88/2,593.72
6. Step 6: Final answer
   x = 2,295.20