Finding the Fourth Proportional to 2,297.87, 3,171.78 and 1,353.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,297.87 : 3,171.78 = 1,353.59 : x
2. Step 2: Convert to fraction form
   2,297.87/3,171.78 = 1,353.59/x
3. Step 3: Cross multiply
   2,297.87x = 3,171.78 × 1,353.59
4. Step 4: Simplify right side
   2,297.87x = 4,293,289.69
5. Step 5: Solve for x
   x = 4,293,289.69/2,297.87
6. Step 6: Final answer
   x = 1,868.38