Finding the Fourth Proportional to 2,188.93, 3,282.30 and 727.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.93 : 3,282.30 = 727.57 : x
2. Step 2: Convert to fraction form
   2,188.93/3,282.30 = 727.57/x
3. Step 3: Cross multiply
   2,188.93x = 3,282.30 × 727.57
4. Step 4: Simplify right side
   2,188.93x = 2,388,103.01
5. Step 5: Solve for x
   x = 2,388,103.01/2,188.93
6. Step 6: Final answer
   x = 1,090.99