Finding the Fourth Proportional to 5,648.58, 8,461.89 and 2,728.94

Step by Step Solution

1. Step 1: Write the proportion equation
   5,648.58 : 8,461.89 = 2,728.94 : x
2. Step 2: Convert to fraction form
   5,648.58/8,461.89 = 2,728.94/x
3. Step 3: Cross multiply
   5,648.58x = 8,461.89 × 2,728.94
4. Step 4: Simplify right side
   5,648.58x = 23,091,947.79
5. Step 5: Solve for x
   x = 23,091,947.79/5,648.58
6. Step 6: Final answer
   x = 4,088.10