Finding the Fourth Proportional to 1,185.23, 1,779.67 and 925.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185.23 : 1,779.67 = 925.83 : x
2. Step 2: Convert to fraction form
   1,185.23/1,779.67 = 925.83/x
3. Step 3: Cross multiply
   1,185.23x = 1,779.67 × 925.83
4. Step 4: Simplify right side
   1,185.23x = 1,647,673.03
5. Step 5: Solve for x
   x = 1,647,673.03/1,185.23
6. Step 6: Final answer
   x = 1,390.17