Finding the Fourth Proportional to 1,162.76, 1,604.01 and 789.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.76 : 1,604.01 = 789.62 : x
2. Step 2: Convert to fraction form
   1,162.76/1,604.01 = 789.62/x
3. Step 3: Cross multiply
   1,162.76x = 1,604.01 × 789.62
4. Step 4: Simplify right side
   1,162.76x = 1,266,558.38
5. Step 5: Solve for x
   x = 1,266,558.38/1,162.76
6. Step 6: Final answer
   x = 1,089.27