Finding the Fourth Proportional to 1,986.16, 2,740.71 and 1,101.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986.16 : 2,740.71 = 1,101.73 : x
2. Step 2: Convert to fraction form
   1,986.16/2,740.71 = 1,101.73/x
3. Step 3: Cross multiply
   1,986.16x = 2,740.71 × 1,101.73
4. Step 4: Simplify right side
   1,986.16x = 3,019,522.43
5. Step 5: Solve for x
   x = 3,019,522.43/1,986.16
6. Step 6: Final answer
   x = 1,520.28