Finding the Fourth Proportional to 3,497.89, 5,243.71 and 1,306.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,497.89 : 5,243.71 = 1,306.72 : x
2. Step 2: Convert to fraction form
   3,497.89/5,243.71 = 1,306.72/x
3. Step 3: Cross multiply
   3,497.89x = 5,243.71 × 1,306.72
4. Step 4: Simplify right side
   3,497.89x = 6,852,060.73
5. Step 5: Solve for x
   x = 6,852,060.73/3,497.89
6. Step 6: Final answer
   x = 1,958.91