Finding the Fourth Proportional to 1,949.78, 2,689.89 and 1,193.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,949.78 : 2,689.89 = 1,193.18 : x
2. Step 2: Convert to fraction form
   1,949.78/2,689.89 = 1,193.18/x
3. Step 3: Cross multiply
   1,949.78x = 2,689.89 × 1,193.18
4. Step 4: Simplify right side
   1,949.78x = 3,209,522.95
5. Step 5: Solve for x
   x = 3,209,522.95/1,949.78
6. Step 6: Final answer
   x = 1,646.09