Finding the Fourth Proportional to 1,942.58, 2,680.34 and 1,196.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.58 : 2,680.34 = 1,196.30 : x
2. Step 2: Convert to fraction form
   1,942.58/2,680.34 = 1,196.30/x
3. Step 3: Cross multiply
   1,942.58x = 2,680.34 × 1,196.30
4. Step 4: Simplify right side
   1,942.58x = 3,206,490.74
5. Step 5: Solve for x
   x = 3,206,490.74/1,942.58
6. Step 6: Final answer
   x = 1,650.64