Finding the Fourth Proportional to 2,828.88, 4,242.50 and 1,185.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,828.88 : 4,242.50 = 1,185.38 : x
2. Step 2: Convert to fraction form
   2,828.88/4,242.50 = 1,185.38/x
3. Step 3: Cross multiply
   2,828.88x = 4,242.50 × 1,185.38
4. Step 4: Simplify right side
   2,828.88x = 5,028,974.65
5. Step 5: Solve for x
   x = 5,028,974.65/2,828.88
6. Step 6: Final answer
   x = 1,777.73