Finding the Fourth Proportional to 1,576.72, 2,362.38 and 711.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,576.72 : 2,362.38 = 711.64 : x
2. Step 2: Convert to fraction form
   1,576.72/2,362.38 = 711.64/x
3. Step 3: Cross multiply
   1,576.72x = 2,362.38 × 711.64
4. Step 4: Simplify right side
   1,576.72x = 1,681,164.10
5. Step 5: Solve for x
   x = 1,681,164.10/1,576.72
6. Step 6: Final answer
   x = 1,066.24