Finding the Fourth Proportional to 2,906.48, 4,360.89 and 1,057.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,906.48 : 4,360.89 = 1,057.73 : x
2. Step 2: Convert to fraction form
   2,906.48/4,360.89 = 1,057.73/x
3. Step 3: Cross multiply
   2,906.48x = 4,360.89 × 1,057.73
4. Step 4: Simplify right side
   2,906.48x = 4,612,620.39
5. Step 5: Solve for x
   x = 4,612,620.39/2,906.48
6. Step 6: Final answer
   x = 1,587.01