Finding the Fourth Proportional to 1,185.63, 1,779.50 and 623.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185.63 : 1,779.50 = 623.22 : x
2. Step 2: Convert to fraction form
   1,185.63/1,779.50 = 623.22/x
3. Step 3: Cross multiply
   1,185.63x = 1,779.50 × 623.22
4. Step 4: Simplify right side
   1,185.63x = 1,109,007.98
5. Step 5: Solve for x
   x = 1,109,007.98/1,185.63
6. Step 6: Final answer
   x = 935.38