Finding the Fourth Proportional to 1,717.05, 2,369.55 and 931.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,717.05 : 2,369.55 = 931.12 : x
2. Step 2: Convert to fraction form
   1,717.05/2,369.55 = 931.12/x
3. Step 3: Cross multiply
   1,717.05x = 2,369.55 × 931.12
4. Step 4: Simplify right side
   1,717.05x = 2,206,332.96
5. Step 5: Solve for x
   x = 2,206,332.96/1,717.05
6. Step 6: Final answer
   x = 1,284.95