Finding the Fourth Proportional to 3,647.34, 5,469.68 and 1,306.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,647.34 : 5,469.68 = 1,306.72 : x
2. Step 2: Convert to fraction form
   3,647.34/5,469.68 = 1,306.72/x
3. Step 3: Cross multiply
   3,647.34x = 5,469.68 × 1,306.72
4. Step 4: Simplify right side
   3,647.34x = 7,147,335.31
5. Step 5: Solve for x
   x = 7,147,335.31/3,647.34
6. Step 6: Final answer
   x = 1,959.60