Finding the Fourth Proportional to 1,694.51, 2,542.52 and 1,078.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,694.51 : 2,542.52 = 1,078.05 : x
2. Step 2: Convert to fraction form
   1,694.51/2,542.52 = 1,078.05/x
3. Step 3: Cross multiply
   1,694.51x = 2,542.52 × 1,078.05
4. Step 4: Simplify right side
   1,694.51x = 2,740,958.30
5. Step 5: Solve for x
   x = 2,740,958.30/1,694.51
6. Step 6: Final answer
   x = 1,617.56