Finding the Fourth Proportional to 1,986.04, 2,740.78 and 1,101.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986.04 : 2,740.78 = 1,101.81 : x
2. Step 2: Convert to fraction form
   1,986.04/2,740.78 = 1,101.81/x
3. Step 3: Cross multiply
   1,986.04x = 2,740.78 × 1,101.81
4. Step 4: Simplify right side
   1,986.04x = 3,019,818.81
5. Step 5: Solve for x
   x = 3,019,818.81/1,986.04
6. Step 6: Final answer
   x = 1,520.52