Finding the Fourth Proportional to 1,940.37, 2,911.72 and 1,200.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940.37 : 2,911.72 = 1,200.97 : x
2. Step 2: Convert to fraction form
   1,940.37/2,911.72 = 1,200.97/x
3. Step 3: Cross multiply
   1,940.37x = 2,911.72 × 1,200.97
4. Step 4: Simplify right side
   1,940.37x = 3,496,888.37
5. Step 5: Solve for x
   x = 3,496,888.37/1,940.37
6. Step 6: Final answer
   x = 1,802.18