Finding the Fourth Proportional to 2,776.47, 4,144.45 and 2,426.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,776.47 : 4,144.45 = 2,426.15 : x
2. Step 2: Convert to fraction form
   2,776.47/4,144.45 = 2,426.15/x
3. Step 3: Cross multiply
   2,776.47x = 4,144.45 × 2,426.15
4. Step 4: Simplify right side
   2,776.47x = 10,055,057.37
5. Step 5: Solve for x
   x = 10,055,057.37/2,776.47
6. Step 6: Final answer
   x = 3,621.52