Finding the Fourth Proportional to 2,452.71, 3,679.47 and 971.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,452.71 : 3,679.47 = 971.49 : x
2. Step 2: Convert to fraction form
   2,452.71/3,679.47 = 971.49/x
3. Step 3: Cross multiply
   2,452.71x = 3,679.47 × 971.49
4. Step 4: Simplify right side
   2,452.71x = 3,574,568.31
5. Step 5: Solve for x
   x = 3,574,568.31/2,452.71
6. Step 6: Final answer
   x = 1,457.40