Finding the Fourth Proportional to 2,945.82, 4,419.53 and 971.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945.82 : 4,419.53 = 971.82 : x
2. Step 2: Convert to fraction form
   2,945.82/4,419.53 = 971.82/x
3. Step 3: Cross multiply
   2,945.82x = 4,419.53 × 971.82
4. Step 4: Simplify right side
   2,945.82x = 4,294,986.43
5. Step 5: Solve for x
   x = 4,294,986.43/2,945.82
6. Step 6: Final answer
   x = 1,457.99