Finding the Fourth Proportional to 2,009.95, 3,015.33 and 712.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009.95 : 3,015.33 = 712.33 : x
2. Step 2: Convert to fraction form
   2,009.95/3,015.33 = 712.33/x
3. Step 3: Cross multiply
   2,009.95x = 3,015.33 × 712.33
4. Step 4: Simplify right side
   2,009.95x = 2,147,891.38
5. Step 5: Solve for x
   x = 2,147,891.38/2,009.95
6. Step 6: Final answer
   x = 1,068.63