Finding the Fourth Proportional to 2,304.65, 3,457.56 and 661.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,304.65 : 3,457.56 = 661.31 : x
2. Step 2: Convert to fraction form
   2,304.65/3,457.56 = 661.31/x
3. Step 3: Cross multiply
   2,304.65x = 3,457.56 × 661.31
4. Step 4: Simplify right side
   2,304.65x = 2,286,501.72
5. Step 5: Solve for x
   x = 2,286,501.72/2,304.65
6. Step 6: Final answer
   x = 992.13