Finding the Fourth Proportional to 2,293.61, 3,165.17 and 1,245.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,293.61 : 3,165.17 = 1,245.69 : x
2. Step 2: Convert to fraction form
   2,293.61/3,165.17 = 1,245.69/x
3. Step 3: Cross multiply
   2,293.61x = 3,165.17 × 1,245.69
4. Step 4: Simplify right side
   2,293.61x = 3,942,814.39
5. Step 5: Solve for x
   x = 3,942,814.39/2,293.61
6. Step 6: Final answer
   x = 1,719.05