Finding the Fourth Proportional to 3,540.45, 5,310.27 and 943.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,540.45 : 5,310.27 = 943.59 : x
2. Step 2: Convert to fraction form
   3,540.45/5,310.27 = 943.59/x
3. Step 3: Cross multiply
   3,540.45x = 5,310.27 × 943.59
4. Step 4: Simplify right side
   3,540.45x = 5,010,717.67
5. Step 5: Solve for x
   x = 5,010,717.67/3,540.45
6. Step 6: Final answer
   x = 1,415.28