Finding the Fourth Proportional to 3,854.55, 5,788.35 and 3,657.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,854.55 : 5,788.35 = 3,657.27 : x
2. Step 2: Convert to fraction form
   3,854.55/5,788.35 = 3,657.27/x
3. Step 3: Cross multiply
   3,854.55x = 5,788.35 × 3,657.27
4. Step 4: Simplify right side
   3,854.55x = 21,169,558.80
5. Step 5: Solve for x
   x = 21,169,558.80/3,854.55
6. Step 6: Final answer
   x = 5,492.10