Finding the Fourth Proportional to 1,990.84, 2,747.33 and 1,106.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.84 : 2,747.33 = 1,106.62 : x
2. Step 2: Convert to fraction form
   1,990.84/2,747.33 = 1,106.62/x
3. Step 3: Cross multiply
   1,990.84x = 2,747.33 × 1,106.62
4. Step 4: Simplify right side
   1,990.84x = 3,040,250.32
5. Step 5: Solve for x
   x = 3,040,250.32/1,990.84
6. Step 6: Final answer
   x = 1,527.12