Finding the Fourth Proportional to 1,162.77, 1,604.71 and 665.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.77 : 1,604.71 = 665.56 : x
2. Step 2: Convert to fraction form
   1,162.77/1,604.71 = 665.56/x
3. Step 3: Cross multiply
   1,162.77x = 1,604.71 × 665.56
4. Step 4: Simplify right side
   1,162.77x = 1,068,027.46
5. Step 5: Solve for x
   x = 1,068,027.46/1,162.77
6. Step 6: Final answer
   x = 918.52