Finding the Fourth Proportional to 1,074.48, 1,610.56 and 704.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074.48 : 1,610.56 = 704.14 : x
2. Step 2: Convert to fraction form
   1,074.48/1,610.56 = 704.14/x
3. Step 3: Cross multiply
   1,074.48x = 1,610.56 × 704.14
4. Step 4: Simplify right side
   1,074.48x = 1,134,059.72
5. Step 5: Solve for x
   x = 1,134,059.72/1,074.48
6. Step 6: Final answer
   x = 1,055.45