Finding the Fourth Proportional to 2,137.46, 3,208.25 and 1,317.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,137.46 : 3,208.25 = 1,317.33 : x
2. Step 2: Convert to fraction form
   2,137.46/3,208.25 = 1,317.33/x
3. Step 3: Cross multiply
   2,137.46x = 3,208.25 × 1,317.33
4. Step 4: Simplify right side
   2,137.46x = 4,226,327.27
5. Step 5: Solve for x
   x = 4,226,327.27/2,137.46
6. Step 6: Final answer
   x = 1,977.27