Finding the Fourth Proportional to 1,982.76, 2,736.06 and 1,143.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.76 : 2,736.06 = 1,143.48 : x
2. Step 2: Convert to fraction form
   1,982.76/2,736.06 = 1,143.48/x
3. Step 3: Cross multiply
   1,982.76x = 2,736.06 × 1,143.48
4. Step 4: Simplify right side
   1,982.76x = 3,128,629.89
5. Step 5: Solve for x
   x = 3,128,629.89/1,982.76
6. Step 6: Final answer
   x = 1,577.92