Finding the Fourth Proportional to 1,404.77, 1,939.37 and 845.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.77 : 1,939.37 = 845.37 : x
2. Step 2: Convert to fraction form
   1,404.77/1,939.37 = 845.37/x
3. Step 3: Cross multiply
   1,404.77x = 1,939.37 × 845.37
4. Step 4: Simplify right side
   1,404.77x = 1,639,480.99
5. Step 5: Solve for x
   x = 1,639,480.99/1,404.77
6. Step 6: Final answer
   x = 1,167.09