Finding the Fourth Proportional to 3,556.89, 5,332.56 and 2,169.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,556.89 : 5,332.56 = 2,169.98 : x
2. Step 2: Convert to fraction form
   3,556.89/5,332.56 = 2,169.98/x
3. Step 3: Cross multiply
   3,556.89x = 5,332.56 × 2,169.98
4. Step 4: Simplify right side
   3,556.89x = 11,571,521.89
5. Step 5: Solve for x
   x = 11,571,521.89/3,556.89
6. Step 6: Final answer
   x = 3,253.27