Finding the Fourth Proportional to 2,829.21, 4,243.05 and 1,185.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,829.21 : 4,243.05 = 1,185.42 : x
2. Step 2: Convert to fraction form
   2,829.21/4,243.05 = 1,185.42/x
3. Step 3: Cross multiply
   2,829.21x = 4,243.05 × 1,185.42
4. Step 4: Simplify right side
   2,829.21x = 5,029,796.33
5. Step 5: Solve for x
   x = 5,029,796.33/2,829.21
6. Step 6: Final answer
   x = 1,777.81