Finding the Fourth Proportional to 1,939.71, 2,910.06 and 1,061.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939.71 : 2,910.06 = 1,061.97 : x
2. Step 2: Convert to fraction form
   1,939.71/2,910.06 = 1,061.97/x
3. Step 3: Cross multiply
   1,939.71x = 2,910.06 × 1,061.97
4. Step 4: Simplify right side
   1,939.71x = 3,090,396.42
5. Step 5: Solve for x
   x = 3,090,396.42/1,939.71
6. Step 6: Final answer
   x = 1,593.23