Finding the Fourth Proportional to 2,075.68, 3,112.91 and 1,709.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.68 : 3,112.91 = 1,709.56 : x
2. Step 2: Convert to fraction form
   2,075.68/3,112.91 = 1,709.56/x
3. Step 3: Cross multiply
   2,075.68x = 3,112.91 × 1,709.56
4. Step 4: Simplify right side
   2,075.68x = 5,321,706.42
5. Step 5: Solve for x
   x = 5,321,706.42/2,075.68
6. Step 6: Final answer
   x = 2,563.84