Finding the Fourth Proportional to 3,061.86, 4,225.71 and 2,874.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.86 : 4,225.71 = 2,874.18 : x
2. Step 2: Convert to fraction form
   3,061.86/4,225.71 = 2,874.18/x
3. Step 3: Cross multiply
   3,061.86x = 4,225.71 × 2,874.18
4. Step 4: Simplify right side
   3,061.86x = 12,145,451.17
5. Step 5: Solve for x
   x = 12,145,451.17/3,061.86
6. Step 6: Final answer
   x = 3,966.69