Finding the Fourth Proportional to 1,215.98, 1,824.27 and 350.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215.98 : 1,824.27 = 350.27 : x
2. Step 2: Convert to fraction form
   1,215.98/1,824.27 = 350.27/x
3. Step 3: Cross multiply
   1,215.98x = 1,824.27 × 350.27
4. Step 4: Simplify right side
   1,215.98x = 638,987.05
5. Step 5: Solve for x
   x = 638,987.05/1,215.98
6. Step 6: Final answer
   x = 525.49