Finding the Fourth Proportional to 3,808.72, 5,255.76 and 2,236.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,808.72 : 5,255.76 = 2,236.60 : x
2. Step 2: Convert to fraction form
   3,808.72/5,255.76 = 2,236.60/x
3. Step 3: Cross multiply
   3,808.72x = 5,255.76 × 2,236.60
4. Step 4: Simplify right side
   3,808.72x = 11,755,032.82
5. Step 5: Solve for x
   x = 11,755,032.82/3,808.72
6. Step 6: Final answer
   x = 3,086.35