Finding the Fourth Proportional to 1,679.82, 2,517.57 and 1,355.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,679.82 : 2,517.57 = 1,355.82 : x
2. Step 2: Convert to fraction form
   1,679.82/2,517.57 = 1,355.82/x
3. Step 3: Cross multiply
   1,679.82x = 2,517.57 × 1,355.82
4. Step 4: Simplify right side
   1,679.82x = 3,413,371.76
5. Step 5: Solve for x
   x = 3,413,371.76/1,679.82
6. Step 6: Final answer
   x = 2,031.99