Finding the Fourth Proportional to 2,674.72, 4,012.35 and 727.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,674.72 : 4,012.35 = 727.12 : x
2. Step 2: Convert to fraction form
   2,674.72/4,012.35 = 727.12/x
3. Step 3: Cross multiply
   2,674.72x = 4,012.35 × 727.12
4. Step 4: Simplify right side
   2,674.72x = 2,917,459.93
5. Step 5: Solve for x
   x = 2,917,459.93/2,674.72
6. Step 6: Final answer
   x = 1,090.75