Finding the Fourth Proportional to 2,571.53, 3,859.34 and 929.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,571.53 : 3,859.34 = 929.23 : x
2. Step 2: Convert to fraction form
   2,571.53/3,859.34 = 929.23/x
3. Step 3: Cross multiply
   2,571.53x = 3,859.34 × 929.23
4. Step 4: Simplify right side
   2,571.53x = 3,586,200.21
5. Step 5: Solve for x
   x = 3,586,200.21/2,571.53
6. Step 6: Final answer
   x = 1,394.58