Finding the Fourth Proportional to 2,421.03, 3,632.15 and 959.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,421.03 : 3,632.15 = 959.69 : x
2. Step 2: Convert to fraction form
   2,421.03/3,632.15 = 959.69/x
3. Step 3: Cross multiply
   2,421.03x = 3,632.15 × 959.69
4. Step 4: Simplify right side
   2,421.03x = 3,485,749.51
5. Step 5: Solve for x
   x = 3,485,749.51/2,421.03
6. Step 6: Final answer
   x = 1,439.78