Finding the Fourth Proportional to 1,943.91, 2,911.22 and 1,065.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,943.91 : 2,911.22 = 1,065.09 : x
2. Step 2: Convert to fraction form
   1,943.91/2,911.22 = 1,065.09/x
3. Step 3: Cross multiply
   1,943.91x = 2,911.22 × 1,065.09
4. Step 4: Simplify right side
   1,943.91x = 3,100,705.98
5. Step 5: Solve for x
   x = 3,100,705.98/1,943.91
6. Step 6: Final answer
   x = 1,595.09