Finding the Fourth Proportional to 1,789.37, 2,469.47 and 992.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.37 : 2,469.47 = 992.77 : x
2. Step 2: Convert to fraction form
   1,789.37/2,469.47 = 992.77/x
3. Step 3: Cross multiply
   1,789.37x = 2,469.47 × 992.77
4. Step 4: Simplify right side
   1,789.37x = 2,451,603.38
5. Step 5: Solve for x
   x = 2,451,603.38/1,789.37
6. Step 6: Final answer
   x = 1,370.09