Finding the Fourth Proportional to 2,489.67, 3,736.42 and 930.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,489.67 : 3,736.42 = 930.83 : x
2. Step 2: Convert to fraction form
   2,489.67/3,736.42 = 930.83/x
3. Step 3: Cross multiply
   2,489.67x = 3,736.42 × 930.83
4. Step 4: Simplify right side
   2,489.67x = 3,477,950.82
5. Step 5: Solve for x
   x = 3,477,950.82/2,489.67
6. Step 6: Final answer
   x = 1,396.95