Finding the Fourth Proportional to 3,811.76, 5,714.40 and 3,630.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,811.76 : 5,714.40 = 3,630.32 : x
2. Step 2: Convert to fraction form
   3,811.76/5,714.40 = 3,630.32/x
3. Step 3: Cross multiply
   3,811.76x = 5,714.40 × 3,630.32
4. Step 4: Simplify right side
   3,811.76x = 20,745,100.61
5. Step 5: Solve for x
   x = 20,745,100.61/3,811.76
6. Step 6: Final answer
   x = 5,442.39