Finding the Fourth Proportional to 2,078.10, 2,867.76 and 1,146.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.10 : 2,867.76 = 1,146.60 : x
2. Step 2: Convert to fraction form
   2,078.10/2,867.76 = 1,146.60/x
3. Step 3: Cross multiply
   2,078.10x = 2,867.76 × 1,146.60
4. Step 4: Simplify right side
   2,078.10x = 3,288,173.62
5. Step 5: Solve for x
   x = 3,288,173.62/2,078.10
6. Step 6: Final answer
   x = 1,582.30