Finding the Fourth Proportional to 2,418.90, 3,629.55 and 958.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,418.90 : 3,629.55 = 958.10 : x
2. Step 2: Convert to fraction form
   2,418.90/3,629.55 = 958.10/x
3. Step 3: Cross multiply
   2,418.90x = 3,629.55 × 958.10
4. Step 4: Simplify right side
   2,418.90x = 3,477,471.86
5. Step 5: Solve for x
   x = 3,477,471.86/2,418.90
6. Step 6: Final answer
   x = 1,437.63