Finding the Fourth Proportional to 2,145.29, 3,212.49 and 1,797.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145.29 : 3,212.49 = 1,797.71 : x
2. Step 2: Convert to fraction form
   2,145.29/3,212.49 = 1,797.71/x
3. Step 3: Cross multiply
   2,145.29x = 3,212.49 × 1,797.71
4. Step 4: Simplify right side
   2,145.29x = 5,775,125.40
5. Step 5: Solve for x
   x = 5,775,125.40/2,145.29
6. Step 6: Final answer
   x = 2,692.00