Finding the Fourth Proportional to 1,836.72, 2,758.73 and 1,143.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,836.72 : 2,758.73 = 1,143.77 : x
2. Step 2: Convert to fraction form
   1,836.72/2,758.73 = 1,143.77/x
3. Step 3: Cross multiply
   1,836.72x = 2,758.73 × 1,143.77
4. Step 4: Simplify right side
   1,836.72x = 3,155,333.10
5. Step 5: Solve for x
   x = 3,155,333.10/1,836.72
6. Step 6: Final answer
   x = 1,717.92