Finding the Fourth Proportional to 2,316.24, 3,474.71 and 672.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,316.24 : 3,474.71 = 672.81 : x
2. Step 2: Convert to fraction form
   2,316.24/3,474.71 = 672.81/x
3. Step 3: Cross multiply
   2,316.24x = 3,474.71 × 672.81
4. Step 4: Simplify right side
   2,316.24x = 2,337,816.27
5. Step 5: Solve for x
   x = 2,337,816.27/2,316.24
6. Step 6: Final answer
   x = 1,009.32