Finding the Fourth Proportional to 1,377.73, 1,900.42 and 984.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377.73 : 1,900.42 = 984.07 : x
2. Step 2: Convert to fraction form
   1,377.73/1,900.42 = 984.07/x
3. Step 3: Cross multiply
   1,377.73x = 1,900.42 × 984.07
4. Step 4: Simplify right side
   1,377.73x = 1,870,146.31
5. Step 5: Solve for x
   x = 1,870,146.31/1,377.73
6. Step 6: Final answer
   x = 1,357.41