Finding the Fourth Proportional to 2,588.21, 3,879.98 and 943.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,588.21 : 3,879.98 = 943.61 : x
2. Step 2: Convert to fraction form
   2,588.21/3,879.98 = 943.61/x
3. Step 3: Cross multiply
   2,588.21x = 3,879.98 × 943.61
4. Step 4: Simplify right side
   2,588.21x = 3,661,172.66
5. Step 5: Solve for x
   x = 3,661,172.66/2,588.21
6. Step 6: Final answer
   x = 1,414.56