Finding the Fourth Proportional to 1,990.68, 2,747.23 and 1,106.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.68 : 2,747.23 = 1,106.48 : x
2. Step 2: Convert to fraction form
   1,990.68/2,747.23 = 1,106.48/x
3. Step 3: Cross multiply
   1,990.68x = 2,747.23 × 1,106.48
4. Step 4: Simplify right side
   1,990.68x = 3,039,755.05
5. Step 5: Solve for x
   x = 3,039,755.05/1,990.68
6. Step 6: Final answer
   x = 1,526.99