Finding the Fourth Proportional to 957.98, 1,436.72 and 341.60

Step by Step Solution

1. Step 1: Write the proportion equation
   957.98 : 1,436.72 = 341.60 : x
2. Step 2: Convert to fraction form
   957.98/1,436.72 = 341.60/x
3. Step 3: Cross multiply
   957.98x = 1,436.72 × 341.60
4. Step 4: Simplify right side
   957.98x = 490,783.55
5. Step 5: Solve for x
   x = 490,783.55/957.98
6. Step 6: Final answer
   x = 512.31