Finding the Fourth Proportional to 2,322.27, 3,483.69 and 861.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,322.27 : 3,483.69 = 861.43 : x
2. Step 2: Convert to fraction form
   2,322.27/3,483.69 = 861.43/x
3. Step 3: Cross multiply
   2,322.27x = 3,483.69 × 861.43
4. Step 4: Simplify right side
   2,322.27x = 3,000,955.08
5. Step 5: Solve for x
   x = 3,000,955.08/2,322.27
6. Step 6: Final answer
   x = 1,292.25