Finding the Fourth Proportional to 2,722.01, 4,079.77 and 1,258.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.01 : 4,079.77 = 1,258.03 : x
2. Step 2: Convert to fraction form
   2,722.01/4,079.77 = 1,258.03/x
3. Step 3: Cross multiply
   2,722.01x = 4,079.77 × 1,258.03
4. Step 4: Simplify right side
   2,722.01x = 5,132,475.01
5. Step 5: Solve for x
   x = 5,132,475.01/2,722.01
6. Step 6: Final answer
   x = 1,885.55