Finding the Fourth Proportional to 957.89, 1,321.82 and 538.25

Step by Step Solution

1. Step 1: Write the proportion equation
   957.89 : 1,321.82 = 538.25 : x
2. Step 2: Convert to fraction form
   957.89/1,321.82 = 538.25/x
3. Step 3: Cross multiply
   957.89x = 1,321.82 × 538.25
4. Step 4: Simplify right side
   957.89x = 711,462.33
5. Step 5: Solve for x
   x = 711,462.33/957.89
6. Step 6: Final answer
   x = 742.74