Finding the Fourth Proportional to 1,164.02, 1,604.75 and 986.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,164.02 : 1,604.75 = 986.27 : x
2. Step 2: Convert to fraction form
   1,164.02/1,604.75 = 986.27/x
3. Step 3: Cross multiply
   1,164.02x = 1,604.75 × 986.27
4. Step 4: Simplify right side
   1,164.02x = 1,582,703.83
5. Step 5: Solve for x
   x = 1,582,703.83/1,164.02
6. Step 6: Final answer
   x = 1,359.69