Finding the Fourth Proportional to 2,069.97, 3,106.78 and 1,745.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.97 : 3,106.78 = 1,745.56 : x
2. Step 2: Convert to fraction form
   2,069.97/3,106.78 = 1,745.56/x
3. Step 3: Cross multiply
   2,069.97x = 3,106.78 × 1,745.56
4. Step 4: Simplify right side
   2,069.97x = 5,423,062.17
5. Step 5: Solve for x
   x = 5,423,062.17/2,069.97
6. Step 6: Final answer
   x = 2,619.87