Finding the Fourth Proportional to 1,453.01, 2,005.14 and 789.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,453.01 : 2,005.14 = 789.85 : x
2. Step 2: Convert to fraction form
   1,453.01/2,005.14 = 789.85/x
3. Step 3: Cross multiply
   1,453.01x = 2,005.14 × 789.85
4. Step 4: Simplify right side
   1,453.01x = 1,583,759.83
5. Step 5: Solve for x
   x = 1,583,759.83/1,453.01
6. Step 6: Final answer
   x = 1,089.99