Finding the Fourth Proportional to 2,728.72, 4,093.73 and 880.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728.72 : 4,093.73 = 880.01 : x
2. Step 2: Convert to fraction form
   2,728.72/4,093.73 = 880.01/x
3. Step 3: Cross multiply
   2,728.72x = 4,093.73 × 880.01
4. Step 4: Simplify right side
   2,728.72x = 3,602,523.34
5. Step 5: Solve for x
   x = 3,602,523.34/2,728.72
6. Step 6: Final answer
   x = 1,320.22