Finding the Fourth Proportional to 2,077.68, 3,115.91 and 1,711.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.68 : 3,115.91 = 1,711.56 : x
2. Step 2: Convert to fraction form
   2,077.68/3,115.91 = 1,711.56/x
3. Step 3: Cross multiply
   2,077.68x = 3,115.91 × 1,711.56
4. Step 4: Simplify right side
   2,077.68x = 5,333,066.92
5. Step 5: Solve for x
   x = 5,333,066.92/2,077.68
6. Step 6: Final answer
   x = 2,566.84