Finding the Fourth Proportional to 2,433.72, 3,647.80 and 971.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,433.72 : 3,647.80 = 971.16 : x
2. Step 2: Convert to fraction form
   2,433.72/3,647.80 = 971.16/x
3. Step 3: Cross multiply
   2,433.72x = 3,647.80 × 971.16
4. Step 4: Simplify right side
   2,433.72x = 3,542,597.45
5. Step 5: Solve for x
   x = 3,542,597.45/2,433.72
6. Step 6: Final answer
   x = 1,455.63