Finding the Fourth Proportional to 2,077.81, 2,867.38 and 1,146.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.81 : 2,867.38 = 1,146.31 : x
2. Step 2: Convert to fraction form
   2,077.81/2,867.38 = 1,146.31/x
3. Step 3: Cross multiply
   2,077.81x = 2,867.38 × 1,146.31
4. Step 4: Simplify right side
   2,077.81x = 3,286,906.37
5. Step 5: Solve for x
   x = 3,286,906.37/2,077.81
6. Step 6: Final answer
   x = 1,581.91