Finding the Fourth Proportional to 3,513.89, 5,267.73 and 1,322.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,513.89 : 5,267.73 = 1,322.71 : x
2. Step 2: Convert to fraction form
   3,513.89/5,267.73 = 1,322.71/x
3. Step 3: Cross multiply
   3,513.89x = 5,267.73 × 1,322.71
4. Step 4: Simplify right side
   3,513.89x = 6,967,679.15
5. Step 5: Solve for x
   x = 6,967,679.15/3,513.89
6. Step 6: Final answer
   x = 1,982.90