Finding the Fourth Proportional to 2,091.92, 3,137.52 and 1,168.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.92 : 3,137.52 = 1,168.40 : x
2. Step 2: Convert to fraction form
   2,091.92/3,137.52 = 1,168.40/x
3. Step 3: Cross multiply
   2,091.92x = 3,137.52 × 1,168.40
4. Step 4: Simplify right side
   2,091.92x = 3,665,878.37
5. Step 5: Solve for x
   x = 3,665,878.37/2,091.92
6. Step 6: Final answer
   x = 1,752.40