Finding the Fourth Proportional to 2,726.01, 4,089.71 and 778.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,726.01 : 4,089.71 = 778.23 : x
2. Step 2: Convert to fraction form
   2,726.01/4,089.71 = 778.23/x
3. Step 3: Cross multiply
   2,726.01x = 4,089.71 × 778.23
4. Step 4: Simplify right side
   2,726.01x = 3,182,735.01
5. Step 5: Solve for x
   x = 3,182,735.01/2,726.01
6. Step 6: Final answer
   x = 1,167.54