Finding the Fourth Proportional to 2,418.72, 3,626.48 and 879.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,418.72 : 3,626.48 = 879.52 : x
2. Step 2: Convert to fraction form
   2,418.72/3,626.48 = 879.52/x
3. Step 3: Cross multiply
   2,418.72x = 3,626.48 × 879.52
4. Step 4: Simplify right side
   2,418.72x = 3,189,561.69
5. Step 5: Solve for x
   x = 3,189,561.69/2,418.72
6. Step 6: Final answer
   x = 1,318.70