Finding the Fourth Proportional to 3,185.74, 4,779.29 and 1,105.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,185.74 : 4,779.29 = 1,105.81 : x
2. Step 2: Convert to fraction form
   3,185.74/4,779.29 = 1,105.81/x
3. Step 3: Cross multiply
   3,185.74x = 4,779.29 × 1,105.81
4. Step 4: Simplify right side
   3,185.74x = 5,284,986.67
5. Step 5: Solve for x
   x = 5,284,986.67/3,185.74
6. Step 6: Final answer
   x = 1,658.95