Finding the Fourth Proportional to 2,721.01, 4,081.42 and 773.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,721.01 : 4,081.42 = 773.21 : x
2. Step 2: Convert to fraction form
   2,721.01/4,081.42 = 773.21/x
3. Step 3: Cross multiply
   2,721.01x = 4,081.42 × 773.21
4. Step 4: Simplify right side
   2,721.01x = 3,155,794.76
5. Step 5: Solve for x
   x = 3,155,794.76/2,721.01
6. Step 6: Final answer
   x = 1,159.79