Finding the Fourth Proportional to 2,613.47, 3,918.27 and 969.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.47 : 3,918.27 = 969.71 : x
2. Step 2: Convert to fraction form
   2,613.47/3,918.27 = 969.71/x
3. Step 3: Cross multiply
   2,613.47x = 3,918.27 × 969.71
4. Step 4: Simplify right side
   2,613.47x = 3,799,585.60
5. Step 5: Solve for x
   x = 3,799,585.60/2,613.47
6. Step 6: Final answer
   x = 1,453.85