Finding the Fourth Proportional to 3,978.96, 5,949.46 and 3,630.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.96 : 5,949.46 = 3,630.42 : x
2. Step 2: Convert to fraction form
   3,978.96/5,949.46 = 3,630.42/x
3. Step 3: Cross multiply
   3,978.96x = 5,949.46 × 3,630.42
4. Step 4: Simplify right side
   3,978.96x = 21,599,038.57
5. Step 5: Solve for x
   x = 21,599,038.57/3,978.96
6. Step 6: Final answer
   x = 5,428.31