Finding the Fourth Proportional to 1,940.45, 2,677.89 and 1,101.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940.45 : 2,677.89 = 1,101.20 : x
2. Step 2: Convert to fraction form
   1,940.45/2,677.89 = 1,101.20/x
3. Step 3: Cross multiply
   1,940.45x = 2,677.89 × 1,101.20
4. Step 4: Simplify right side
   1,940.45x = 2,948,879.08
5. Step 5: Solve for x
   x = 2,948,879.08/1,940.45
6. Step 6: Final answer
   x = 1,519.69