Finding the Fourth Proportional to 2,836.74, 4,256.20 and 1,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,836.74 : 4,256.20 = 1,105.50 : x
2. Step 2: Convert to fraction form
   2,836.74/4,256.20 = 1,105.50/x
3. Step 3: Cross multiply
   2,836.74x = 4,256.20 × 1,105.50
4. Step 4: Simplify right side
   2,836.74x = 4,705,229.10
5. Step 5: Solve for x
   x = 4,705,229.10/2,836.74
6. Step 6: Final answer
   x = 1,658.67