Finding the Fourth Proportional to 1,095.30, 1,646.01 and 656.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.30 : 1,646.01 = 656.61 : x
2. Step 2: Convert to fraction form
   1,095.30/1,646.01 = 656.61/x
3. Step 3: Cross multiply
   1,095.30x = 1,646.01 × 656.61
4. Step 4: Simplify right side
   1,095.30x = 1,080,786.63
5. Step 5: Solve for x
   x = 1,080,786.63/1,095.30
6. Step 6: Final answer
   x = 986.75