Finding the Fourth Proportional to 2,612.12, 3,600.06 and 2,276.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.12 : 3,600.06 = 2,276.78 : x
2. Step 2: Convert to fraction form
   2,612.12/3,600.06 = 2,276.78/x
3. Step 3: Cross multiply
   2,612.12x = 3,600.06 × 2,276.78
4. Step 4: Simplify right side
   2,612.12x = 8,196,544.61
5. Step 5: Solve for x
   x = 8,196,544.61/2,612.12
6. Step 6: Final answer
   x = 3,137.89