Finding the Fourth Proportional to 1,570.71, 2,356.69 and 704.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570.71 : 2,356.69 = 704.42 : x
2. Step 2: Convert to fraction form
   1,570.71/2,356.69 = 704.42/x
3. Step 3: Cross multiply
   1,570.71x = 2,356.69 × 704.42
4. Step 4: Simplify right side
   1,570.71x = 1,660,099.57
5. Step 5: Solve for x
   x = 1,660,099.57/1,570.71
6. Step 6: Final answer
   x = 1,056.91