Finding the Fourth Proportional to 3,827.60, 5,736.57 and 2,648.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,827.60 : 5,736.57 = 2,648.22 : x
2. Step 2: Convert to fraction form
   3,827.60/5,736.57 = 2,648.22/x
3. Step 3: Cross multiply
   3,827.60x = 5,736.57 × 2,648.22
4. Step 4: Simplify right side
   3,827.60x = 15,191,699.41
5. Step 5: Solve for x
   x = 15,191,699.41/3,827.60
6. Step 6: Final answer
   x = 3,968.99