Finding the Fourth Proportional to 1,453.10, 2,005.27 and 789.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,453.10 : 2,005.27 = 789.95 : x
2. Step 2: Convert to fraction form
   1,453.10/2,005.27 = 789.95/x
3. Step 3: Cross multiply
   1,453.10x = 2,005.27 × 789.95
4. Step 4: Simplify right side
   1,453.10x = 1,584,059.09
5. Step 5: Solve for x
   x = 1,584,059.09/1,453.10
6. Step 6: Final answer
   x = 1,090.13