Finding the Fourth Proportional to 2,077.78, 2,867.37 and 1,146.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.78 : 2,867.37 = 1,146.28 : x
2. Step 2: Convert to fraction form
   2,077.78/2,867.37 = 1,146.28/x
3. Step 3: Cross multiply
   2,077.78x = 2,867.37 × 1,146.28
4. Step 4: Simplify right side
   2,077.78x = 3,286,808.88
5. Step 5: Solve for x
   x = 3,286,808.88/2,077.78
6. Step 6: Final answer
   x = 1,581.88