Finding the Fourth Proportional to 1,571.05, 2,165.52 and 1,383.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,571.05 : 2,165.52 = 1,383.33 : x
2. Step 2: Convert to fraction form
   1,571.05/2,165.52 = 1,383.33/x
3. Step 3: Cross multiply
   1,571.05x = 2,165.52 × 1,383.33
4. Step 4: Simplify right side
   1,571.05x = 2,995,628.78
5. Step 5: Solve for x
   x = 2,995,628.78/1,571.05
6. Step 6: Final answer
   x = 1,906.77