Finding the Fourth Proportional to 3,515.50, 5,269.80 and 1,956.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,515.50 : 5,269.80 = 1,956.25 : x
2. Step 2: Convert to fraction form
   3,515.50/5,269.80 = 1,956.25/x
3. Step 3: Cross multiply
   3,515.50x = 5,269.80 × 1,956.25
4. Step 4: Simplify right side
   3,515.50x = 10,309,019.90
5. Step 5: Solve for x
   x = 10,309,019.90/3,515.50
6. Step 6: Final answer
   x = 2,932.45