Finding the Fourth Proportional to 2,962.15, 4,443.21 and 2,781.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,962.15 : 4,443.21 = 2,781.71 : x
2. Step 2: Convert to fraction form
   2,962.15/4,443.21 = 2,781.71/x
3. Step 3: Cross multiply
   2,962.15x = 4,443.21 × 2,781.71
4. Step 4: Simplify right side
   2,962.15x = 12,359,721.69
5. Step 5: Solve for x
   x = 12,359,721.69/2,962.15
6. Step 6: Final answer
   x = 4,172.55