Finding the Fourth Proportional to 2,293.40, 3,165.05 and 1,298.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,293.40 : 3,165.05 = 1,298.79 : x
2. Step 2: Convert to fraction form
   2,293.40/3,165.05 = 1,298.79/x
3. Step 3: Cross multiply
   2,293.40x = 3,165.05 × 1,298.79
4. Step 4: Simplify right side
   2,293.40x = 4,110,738.54
5. Step 5: Solve for x
   x = 4,110,738.54/2,293.40
6. Step 6: Final answer
   x = 1,792.42