Finding the Fourth Proportional to 3,571.55, 5,359.34 and 1,928.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,571.55 : 5,359.34 = 1,928.06 : x
2. Step 2: Convert to fraction form
   3,571.55/5,359.34 = 1,928.06/x
3. Step 3: Cross multiply
   3,571.55x = 5,359.34 × 1,928.06
4. Step 4: Simplify right side
   3,571.55x = 10,333,116.21
5. Step 5: Solve for x
   x = 10,333,116.21/3,571.55
6. Step 6: Final answer
   x = 2,893.18