Finding the Fourth Proportional to 1,982.79, 2,736.27 and 1,086.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.79 : 2,736.27 = 1,086.55 : x
2. Step 2: Convert to fraction form
   1,982.79/2,736.27 = 1,086.55/x
3. Step 3: Cross multiply
   1,982.79x = 2,736.27 × 1,086.55
4. Step 4: Simplify right side
   1,982.79x = 2,973,091.45
5. Step 5: Solve for x
   x = 2,973,091.45/1,982.79
6. Step 6: Final answer
   x = 1,499.45