Finding the Fourth Proportional to 2,722.09, 4,076.74 and 1,331.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.09 : 4,076.74 = 1,331.07 : x
2. Step 2: Convert to fraction form
   2,722.09/4,076.74 = 1,331.07/x
3. Step 3: Cross multiply
   2,722.09x = 4,076.74 × 1,331.07
4. Step 4: Simplify right side
   2,722.09x = 5,426,426.31
5. Step 5: Solve for x
   x = 5,426,426.31/2,722.09
6. Step 6: Final answer
   x = 1,993.48