Finding the Fourth Proportional to 3,832.52, 5,290.52 and 2,639.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,832.52 : 5,290.52 = 2,639.18 : x
2. Step 2: Convert to fraction form
   3,832.52/5,290.52 = 2,639.18/x
3. Step 3: Cross multiply
   3,832.52x = 5,290.52 × 2,639.18
4. Step 4: Simplify right side
   3,832.52x = 13,962,634.60
5. Step 5: Solve for x
   x = 13,962,634.60/3,832.52
6. Step 6: Final answer
   x = 3,643.20