Finding the Fourth Proportional to 1,717.06, 2,369.69 and 971.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,717.06 : 2,369.69 = 971.15 : x
2. Step 2: Convert to fraction form
   1,717.06/2,369.69 = 971.15/x
3. Step 3: Cross multiply
   1,717.06x = 2,369.69 × 971.15
4. Step 4: Simplify right side
   1,717.06x = 2,301,324.71
5. Step 5: Solve for x
   x = 2,301,324.71/1,717.06
6. Step 6: Final answer
   x = 1,340.27