Finding the Fourth Proportional to 1,939.71, 2,911.59 and 1,710.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939.71 : 2,911.59 = 1,710.09 : x
2. Step 2: Convert to fraction form
   1,939.71/2,911.59 = 1,710.09/x
3. Step 3: Cross multiply
   1,939.71x = 2,911.59 × 1,710.09
4. Step 4: Simplify right side
   1,939.71x = 4,979,080.94
5. Step 5: Solve for x
   x = 4,979,080.94/1,939.71
6. Step 6: Final answer
   x = 2,566.92