Finding the Fourth Proportional to 2,086, 2,878.72 and 1,154.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086 : 2,878.72 = 1,154.48 : x
2. Step 2: Convert to fraction form
   2,086/2,878.72 = 1,154.48/x
3. Step 3: Cross multiply
   2,086x = 2,878.72 × 1,154.48
4. Step 4: Simplify right side
   2,086x = 3,323,424.67
5. Step 5: Solve for x
   x = 3,323,424.67/2,086
6. Step 6: Final answer
   x = 1,593.20