Finding the Fourth Proportional to 3,788.52, 5,673.96 and 3,657.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,788.52 : 5,673.96 = 3,657.15 : x
2. Step 2: Convert to fraction form
   3,788.52/5,673.96 = 3,657.15/x
3. Step 3: Cross multiply
   3,788.52x = 5,673.96 × 3,657.15
4. Step 4: Simplify right side
   3,788.52x = 20,750,522.81
5. Step 5: Solve for x
   x = 20,750,522.81/3,788.52
6. Step 6: Final answer
   x = 5,477.21