Finding the Fourth Proportional to 1,990.76, 2,747.25 and 1,106.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.76 : 2,747.25 = 1,106.57 : x
2. Step 2: Convert to fraction form
   1,990.76/2,747.25 = 1,106.57/x
3. Step 3: Cross multiply
   1,990.76x = 2,747.25 × 1,106.57
4. Step 4: Simplify right side
   1,990.76x = 3,040,031.30
5. Step 5: Solve for x
   x = 3,040,031.30/1,990.76
6. Step 6: Final answer
   x = 1,527.07