Finding the Fourth Proportional to 3,553.89, 5,330.43 and 956.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,553.89 : 5,330.43 = 956.63 : x
2. Step 2: Convert to fraction form
   3,553.89/5,330.43 = 956.63/x
3. Step 3: Cross multiply
   3,553.89x = 5,330.43 × 956.63
4. Step 4: Simplify right side
   3,553.89x = 5,099,222.60
5. Step 5: Solve for x
   x = 5,099,222.60/3,553.89
6. Step 6: Final answer
   x = 1,434.83