Finding the Fourth Proportional to 3,870.72, 5,805.34 and 1,096.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.72 : 5,805.34 = 1,096.73 : x
2. Step 2: Convert to fraction form
   3,870.72/5,805.34 = 1,096.73/x
3. Step 3: Cross multiply
   3,870.72x = 5,805.34 × 1,096.73
4. Step 4: Simplify right side
   3,870.72x = 6,366,861.51
5. Step 5: Solve for x
   x = 6,366,861.51/3,870.72
6. Step 6: Final answer
   x = 1,644.88