Finding the Fourth Proportional to 2,721.09, 4,081.69 and 773.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,721.09 : 4,081.69 = 773.35 : x
2. Step 2: Convert to fraction form
   2,721.09/4,081.69 = 773.35/x
3. Step 3: Cross multiply
   2,721.09x = 4,081.69 × 773.35
4. Step 4: Simplify right side
   2,721.09x = 3,156,565.72
5. Step 5: Solve for x
   x = 3,156,565.72/2,721.09
6. Step 6: Final answer
   x = 1,160.04