Finding the Fourth Proportional to 1,990.68, 2,747.33 and 1,106.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.68 : 2,747.33 = 1,106.77 : x
2. Step 2: Convert to fraction form
   1,990.68/2,747.33 = 1,106.77/x
3. Step 3: Cross multiply
   1,990.68x = 2,747.33 × 1,106.77
4. Step 4: Simplify right side
   1,990.68x = 3,040,662.42
5. Step 5: Solve for x
   x = 3,040,662.42/1,990.68
6. Step 6: Final answer
   x = 1,527.45