Finding the Fourth Proportional to 2,603.27, 3,905.43 and 959.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603.27 : 3,905.43 = 959.83 : x
2. Step 2: Convert to fraction form
   2,603.27/3,905.43 = 959.83/x
3. Step 3: Cross multiply
   2,603.27x = 3,905.43 × 959.83
4. Step 4: Simplify right side
   2,603.27x = 3,748,539.11
5. Step 5: Solve for x
   x = 3,748,539.11/2,603.27
6. Step 6: Final answer
   x = 1,439.93