Finding the Fourth Proportional to 5,196.71, 7,796.29 and 1,686.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.71 : 7,796.29 = 1,686.72 : x
2. Step 2: Convert to fraction form
   5,196.71/7,796.29 = 1,686.72/x
3. Step 3: Cross multiply
   5,196.71x = 7,796.29 × 1,686.72
4. Step 4: Simplify right side
   5,196.71x = 13,150,158.27
5. Step 5: Solve for x
   x = 13,150,158.27/5,196.71
6. Step 6: Final answer
   x = 2,530.48