Finding the Fourth Proportional to 3,941.72, 5,905.20 and 3,536

Step by Step Solution

1. Step 1: Write the proportion equation
   3,941.72 : 5,905.20 = 3,536 : x
2. Step 2: Convert to fraction form
   3,941.72/5,905.20 = 3,536/x
3. Step 3: Cross multiply
   3,941.72x = 5,905.20 × 3,536
4. Step 4: Simplify right side
   3,941.72x = 20,880,787.20
5. Step 5: Solve for x
   x = 20,880,787.20/3,941.72
6. Step 6: Final answer
   x = 5,297.38