Finding the Fourth Proportional to 1,571.81, 2,169.59 and 1,074.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,571.81 : 2,169.59 = 1,074.27 : x
2. Step 2: Convert to fraction form
   1,571.81/2,169.59 = 1,074.27/x
3. Step 3: Cross multiply
   1,571.81x = 2,169.59 × 1,074.27
4. Step 4: Simplify right side
   1,571.81x = 2,330,725.45
5. Step 5: Solve for x
   x = 2,330,725.45/1,571.81
6. Step 6: Final answer
   x = 1,482.83