Finding the Fourth Proportional to 1,436.92, 1,981.38 and 970.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.92 : 1,981.38 = 970.36 : x
2. Step 2: Convert to fraction form
   1,436.92/1,981.38 = 970.36/x
3. Step 3: Cross multiply
   1,436.92x = 1,981.38 × 970.36
4. Step 4: Simplify right side
   1,436.92x = 1,922,651.90
5. Step 5: Solve for x
   x = 1,922,651.90/1,436.92
6. Step 6: Final answer
   x = 1,338.04