Finding the Fourth Proportional to 3,449.50, 5,174.74 and 1,108.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,449.50 : 5,174.74 = 1,108.72 : x
2. Step 2: Convert to fraction form
   3,449.50/5,174.74 = 1,108.72/x
3. Step 3: Cross multiply
   3,449.50x = 5,174.74 × 1,108.72
4. Step 4: Simplify right side
   3,449.50x = 5,737,337.73
5. Step 5: Solve for x
   x = 5,737,337.73/3,449.50
6. Step 6: Final answer
   x = 1,663.24