Finding the Fourth Proportional to 1,095.27, 1,643.37 and 657.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.27 : 1,643.37 = 657.37 : x
2. Step 2: Convert to fraction form
   1,095.27/1,643.37 = 657.37/x
3. Step 3: Cross multiply
   1,095.27x = 1,643.37 × 657.37
4. Step 4: Simplify right side
   1,095.27x = 1,080,290.63
5. Step 5: Solve for x
   x = 1,080,290.63/1,095.27
6. Step 6: Final answer
   x = 986.32