Finding the Fourth Proportional to 2,293.67, 3,165.18 and 1,245.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,293.67 : 3,165.18 = 1,245.71 : x
2. Step 2: Convert to fraction form
   2,293.67/3,165.18 = 1,245.71/x
3. Step 3: Cross multiply
   2,293.67x = 3,165.18 × 1,245.71
4. Step 4: Simplify right side
   2,293.67x = 3,942,896.38
5. Step 5: Solve for x
   x = 3,942,896.38/2,293.67
6. Step 6: Final answer
   x = 1,719.03