Finding the Fourth Proportional to 3,582.78, 5,373.54 and 950.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,582.78 : 5,373.54 = 950.31 : x
2. Step 2: Convert to fraction form
   3,582.78/5,373.54 = 950.31/x
3. Step 3: Cross multiply
   3,582.78x = 5,373.54 × 950.31
4. Step 4: Simplify right side
   3,582.78x = 5,106,528.80
5. Step 5: Solve for x
   x = 5,106,528.80/3,582.78
6. Step 6: Final answer
   x = 1,425.30