Finding the Fourth Proportional to 1,042.56, 1,563.52 and 964.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,042.56 : 1,563.52 = 964.48 : x
2. Step 2: Convert to fraction form
   1,042.56/1,563.52 = 964.48/x
3. Step 3: Cross multiply
   1,042.56x = 1,563.52 × 964.48
4. Step 4: Simplify right side
   1,042.56x = 1,507,983.77
5. Step 5: Solve for x
   x = 1,507,983.77/1,042.56
6. Step 6: Final answer
   x = 1,446.42