Finding the Fourth Proportional to 1,095.59, 1,644.06 and 575.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.59 : 1,644.06 = 575.88 : x
2. Step 2: Convert to fraction form
   1,095.59/1,644.06 = 575.88/x
3. Step 3: Cross multiply
   1,095.59x = 1,644.06 × 575.88
4. Step 4: Simplify right side
   1,095.59x = 946,777.27
5. Step 5: Solve for x
   x = 946,777.27/1,095.59
6. Step 6: Final answer
   x = 864.17