Finding the Fourth Proportional to 3,301.72, 4,951.20 and 1,109.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,301.72 : 4,951.20 = 1,109.92 : x
2. Step 2: Convert to fraction form
   3,301.72/4,951.20 = 1,109.92/x
3. Step 3: Cross multiply
   3,301.72x = 4,951.20 × 1,109.92
4. Step 4: Simplify right side
   3,301.72x = 5,495,435.90
5. Step 5: Solve for x
   x = 5,495,435.90/3,301.72
6. Step 6: Final answer
   x = 1,664.42