Finding the Fourth Proportional to 1,989.18, 2,745 and 1,105.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989.18 : 2,745 = 1,105.02 : x
2. Step 2: Convert to fraction form
   1,989.18/2,745 = 1,105.02/x
3. Step 3: Cross multiply
   1,989.18x = 2,745 × 1,105.02
4. Step 4: Simplify right side
   1,989.18x = 3,033,279.90
5. Step 5: Solve for x
   x = 3,033,279.90/1,989.18
6. Step 6: Final answer
   x = 1,524.89