Finding the Fourth Proportional to 1,162.56, 1,606.08 and 1,064.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.56 : 1,606.08 = 1,064.28 : x
2. Step 2: Convert to fraction form
   1,162.56/1,606.08 = 1,064.28/x
3. Step 3: Cross multiply
   1,162.56x = 1,606.08 × 1,064.28
4. Step 4: Simplify right side
   1,162.56x = 1,709,318.82
5. Step 5: Solve for x
   x = 1,709,318.82/1,162.56
6. Step 6: Final answer
   x = 1,470.31