Finding the Fourth Proportional to 1,990.82, 2,747.39 and 1,106.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.82 : 2,747.39 = 1,106.70 : x
2. Step 2: Convert to fraction form
   1,990.82/2,747.39 = 1,106.70/x
3. Step 3: Cross multiply
   1,990.82x = 2,747.39 × 1,106.70
4. Step 4: Simplify right side
   1,990.82x = 3,040,530.98
5. Step 5: Solve for x
   x = 3,040,530.98/1,990.82
6. Step 6: Final answer
   x = 1,527.28