Finding the Fourth Proportional to 2,671.56, 4,007.52 and 723.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,671.56 : 4,007.52 = 723.72 : x
2. Step 2: Convert to fraction form
   2,671.56/4,007.52 = 723.72/x
3. Step 3: Cross multiply
   2,671.56x = 4,007.52 × 723.72
4. Step 4: Simplify right side
   2,671.56x = 2,900,322.37
5. Step 5: Solve for x
   x = 2,900,322.37/2,671.56
6. Step 6: Final answer
   x = 1,085.63