Finding the Fourth Proportional to 2,317.28, 3,196.73 and 1,686.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,317.28 : 3,196.73 = 1,686.83 : x
2. Step 2: Convert to fraction form
   2,317.28/3,196.73 = 1,686.83/x
3. Step 3: Cross multiply
   2,317.28x = 3,196.73 × 1,686.83
4. Step 4: Simplify right side
   2,317.28x = 5,392,328.30
5. Step 5: Solve for x
   x = 5,392,328.30/2,317.28
6. Step 6: Final answer
   x = 2,327.01