Finding the Fourth Proportional to 1,571.68, 2,356.71 and 705.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,571.68 : 2,356.71 = 705.25 : x
2. Step 2: Convert to fraction form
   1,571.68/2,356.71 = 705.25/x
3. Step 3: Cross multiply
   1,571.68x = 2,356.71 × 705.25
4. Step 4: Simplify right side
   1,571.68x = 1,662,069.73
5. Step 5: Solve for x
   x = 1,662,069.73/1,571.68
6. Step 6: Final answer
   x = 1,057.51