Finding the Fourth Proportional to 2,722.06, 4,082.43 and 1,259.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.06 : 4,082.43 = 1,259.81 : x
2. Step 2: Convert to fraction form
   2,722.06/4,082.43 = 1,259.81/x
3. Step 3: Cross multiply
   2,722.06x = 4,082.43 × 1,259.81
4. Step 4: Simplify right side
   2,722.06x = 5,143,065.73
5. Step 5: Solve for x
   x = 5,143,065.73/2,722.06
6. Step 6: Final answer
   x = 1,889.41