Finding the Fourth Proportional to 2,317.72, 3,476.72 and 674.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,317.72 : 3,476.72 = 674.28 : x
2. Step 2: Convert to fraction form
   2,317.72/3,476.72 = 674.28/x
3. Step 3: Cross multiply
   2,317.72x = 3,476.72 × 674.28
4. Step 4: Simplify right side
   2,317.72x = 2,344,282.76
5. Step 5: Solve for x
   x = 2,344,282.76/2,317.72
6. Step 6: Final answer
   x = 1,011.46