Finding the Fourth Proportional to 3,311.83, 4,968.52 and 971.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,311.83 : 4,968.52 = 971.88 : x
2. Step 2: Convert to fraction form
   3,311.83/4,968.52 = 971.88/x
3. Step 3: Cross multiply
   3,311.83x = 4,968.52 × 971.88
4. Step 4: Simplify right side
   3,311.83x = 4,828,805.22
5. Step 5: Solve for x
   x = 4,828,805.22/3,311.83
6. Step 6: Final answer
   x = 1,458.05