Finding the Fourth Proportional to 2,078.31, 2,867.83 and 1,194.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.31 : 2,867.83 = 1,194.40 : x
2. Step 2: Convert to fraction form
   2,078.31/2,867.83 = 1,194.40/x
3. Step 3: Cross multiply
   2,078.31x = 2,867.83 × 1,194.40
4. Step 4: Simplify right side
   2,078.31x = 3,425,323.98
5. Step 5: Solve for x
   x = 3,425,323.98/2,078.31
6. Step 6: Final answer
   x = 1,648.13