Finding the Fourth Proportional to 1,990.72, 2,747.19 and 1,106.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.72 : 2,747.19 = 1,106.52 : x
2. Step 2: Convert to fraction form
   1,990.72/2,747.19 = 1,106.52/x
3. Step 3: Cross multiply
   1,990.72x = 2,747.19 × 1,106.52
4. Step 4: Simplify right side
   1,990.72x = 3,039,820.68
5. Step 5: Solve for x
   x = 3,039,820.68/1,990.72
6. Step 6: Final answer
   x = 1,527.00