Finding the Fourth Proportional to 1,940.48, 2,912.52 and 786.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940.48 : 2,912.52 = 786.32 : x
2. Step 2: Convert to fraction form
   1,940.48/2,912.52 = 786.32/x
3. Step 3: Cross multiply
   1,940.48x = 2,912.52 × 786.32
4. Step 4: Simplify right side
   1,940.48x = 2,290,172.73
5. Step 5: Solve for x
   x = 2,290,172.73/1,940.48
6. Step 6: Final answer
   x = 1,180.21