Finding the Fourth Proportional to 2,881.56, 4,323.42 and 1,728.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,881.56 : 4,323.42 = 1,728.12 : x
2. Step 2: Convert to fraction form
   2,881.56/4,323.42 = 1,728.12/x
3. Step 3: Cross multiply
   2,881.56x = 4,323.42 × 1,728.12
4. Step 4: Simplify right side
   2,881.56x = 7,471,388.57
5. Step 5: Solve for x
   x = 7,471,388.57/2,881.56
6. Step 6: Final answer
   x = 2,592.83