Finding the Fourth Proportional to 2,420.67, 3,630.82 and 959.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,420.67 : 3,630.82 = 959.93 : x
2. Step 2: Convert to fraction form
   2,420.67/3,630.82 = 959.93/x
3. Step 3: Cross multiply
   2,420.67x = 3,630.82 × 959.93
4. Step 4: Simplify right side
   2,420.67x = 3,485,333.04
5. Step 5: Solve for x
   x = 3,485,333.04/2,420.67
6. Step 6: Final answer
   x = 1,439.82