Finding the Fourth Proportional to 2,564.31, 3,536.41 and 1,679.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,564.31 : 3,536.41 = 1,679.79 : x
2. Step 2: Convert to fraction form
   2,564.31/3,536.41 = 1,679.79/x
3. Step 3: Cross multiply
   2,564.31x = 3,536.41 × 1,679.79
4. Step 4: Simplify right side
   2,564.31x = 5,940,426.15
5. Step 5: Solve for x
   x = 5,940,426.15/2,564.31
6. Step 6: Final answer
   x = 2,316.58