Finding the Fourth Proportional to 2,643.72, 3,648.42 and 1,596.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.72 : 3,648.42 = 1,596.12 : x
2. Step 2: Convert to fraction form
   2,643.72/3,648.42 = 1,596.12/x
3. Step 3: Cross multiply
   2,643.72x = 3,648.42 × 1,596.12
4. Step 4: Simplify right side
   2,643.72x = 5,823,316.13
5. Step 5: Solve for x
   x = 5,823,316.13/2,643.72
6. Step 6: Final answer
   x = 2,202.70