Finding the Fourth Proportional to 1,625.00, 2,241.86 and 961.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,625.00 : 2,241.86 = 961.61 : x
2. Step 2: Convert to fraction form
   1,625.00/2,241.86 = 961.61/x
3. Step 3: Cross multiply
   1,625.00x = 2,241.86 × 961.61
4. Step 4: Simplify right side
   1,625.00x = 2,155,778.98
5. Step 5: Solve for x
   x = 2,155,778.98/1,625.00
6. Step 6: Final answer
   x = 1,326.64