Finding the Fourth Proportional to 2,280.51, 3,421.59 and 964.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.51 : 3,421.59 = 964.59 : x
2. Step 2: Convert to fraction form
   2,280.51/3,421.59 = 964.59/x
3. Step 3: Cross multiply
   2,280.51x = 3,421.59 × 964.59
4. Step 4: Simplify right side
   2,280.51x = 3,300,431.50
5. Step 5: Solve for x
   x = 3,300,431.50/2,280.51
6. Step 6: Final answer
   x = 1,447.23