Finding the Fourth Proportional to 2,011.76, 3,015.52 and 712.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.76 : 3,015.52 = 712.32 : x
2. Step 2: Convert to fraction form
   2,011.76/3,015.52 = 712.32/x
3. Step 3: Cross multiply
   2,011.76x = 3,015.52 × 712.32
4. Step 4: Simplify right side
   2,011.76x = 2,148,015.21
5. Step 5: Solve for x
   x = 2,148,015.21/2,011.76
6. Step 6: Final answer
   x = 1,067.73