Finding the Fourth Proportional to 1,617.69, 2,426.67 and 693.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,617.69 : 2,426.67 = 693.27 : x
2. Step 2: Convert to fraction form
   1,617.69/2,426.67 = 693.27/x
3. Step 3: Cross multiply
   1,617.69x = 2,426.67 × 693.27
4. Step 4: Simplify right side
   1,617.69x = 1,682,337.51
5. Step 5: Solve for x
   x = 1,682,337.51/1,617.69
6. Step 6: Final answer
   x = 1,039.96