Finding the Fourth Proportional to 2,379.50, 3,571.42 and 1,210.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.50 : 3,571.42 = 1,210.29 : x
2. Step 2: Convert to fraction form
   2,379.50/3,571.42 = 1,210.29/x
3. Step 3: Cross multiply
   2,379.50x = 3,571.42 × 1,210.29
4. Step 4: Simplify right side
   2,379.50x = 4,322,456.45
5. Step 5: Solve for x
   x = 4,322,456.45/2,379.50
6. Step 6: Final answer
   x = 1,816.54