Finding the Fourth Proportional to 3,568.72, 5,353.06 and 971.65

Step by Step Solution

1. Step 1: Write the proportion equation
   3,568.72 : 5,353.06 = 971.65 : x
2. Step 2: Convert to fraction form
   3,568.72/5,353.06 = 971.65/x
3. Step 3: Cross multiply
   3,568.72x = 5,353.06 × 971.65
4. Step 4: Simplify right side
   3,568.72x = 5,201,300.75
5. Step 5: Solve for x
   x = 5,201,300.75/3,568.72
6. Step 6: Final answer
   x = 1,457.47