Finding the Fourth Proportional to 3,632.78, 5,444.52 and 2,643.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,632.78 : 5,444.52 = 2,643.10 : x
2. Step 2: Convert to fraction form
   3,632.78/5,444.52 = 2,643.10/x
3. Step 3: Cross multiply
   3,632.78x = 5,444.52 × 2,643.10
4. Step 4: Simplify right side
   3,632.78x = 14,390,387.29
5. Step 5: Solve for x
   x = 14,390,387.29/3,632.78
6. Step 6: Final answer
   x = 3,961.26