Finding the Fourth Proportional to 1,826.72, 2,741.24 and 961.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,826.72 : 2,741.24 = 961.64 : x
2. Step 2: Convert to fraction form
   1,826.72/2,741.24 = 961.64/x
3. Step 3: Cross multiply
   1,826.72x = 2,741.24 × 961.64
4. Step 4: Simplify right side
   1,826.72x = 2,636,086.03
5. Step 5: Solve for x
   x = 2,636,086.03/1,826.72
6. Step 6: Final answer
   x = 1,443.07