Finding the Fourth Proportional to 3,980.94, 5,503.32 and 3,648.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,980.94 : 5,503.32 = 3,648.84 : x
2. Step 2: Convert to fraction form
   3,980.94/5,503.32 = 3,648.84/x
3. Step 3: Cross multiply
   3,980.94x = 5,503.32 × 3,648.84
4. Step 4: Simplify right side
   3,980.94x = 20,080,734.15
5. Step 5: Solve for x
   x = 20,080,734.15/3,980.94
6. Step 6: Final answer
   x = 5,044.22