Finding the Fourth Proportional to 1,095.88, 1,643.82 and 662.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.88 : 1,643.82 = 662.12 : x
2. Step 2: Convert to fraction form
   1,095.88/1,643.82 = 662.12/x
3. Step 3: Cross multiply
   1,095.88x = 1,643.82 × 662.12
4. Step 4: Simplify right side
   1,095.88x = 1,088,406.10
5. Step 5: Solve for x
   x = 1,088,406.10/1,095.88
6. Step 6: Final answer
   x = 993.18