Finding the Fourth Proportional to 1,337.58, 2,004.31 and 789.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.58 : 2,004.31 = 789.16 : x
2. Step 2: Convert to fraction form
   1,337.58/2,004.31 = 789.16/x
3. Step 3: Cross multiply
   1,337.58x = 2,004.31 × 789.16
4. Step 4: Simplify right side
   1,337.58x = 1,581,721.01
5. Step 5: Solve for x
   x = 1,581,721.01/1,337.58
6. Step 6: Final answer
   x = 1,182.52