Finding the Fourth Proportional to 3,556.52, 5,335.50 and 1,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,556.52 : 5,335.50 = 1,091.50 : x
2. Step 2: Convert to fraction form
   3,556.52/5,335.50 = 1,091.50/x
3. Step 3: Cross multiply
   3,556.52x = 5,335.50 × 1,091.50
4. Step 4: Simplify right side
   3,556.52x = 5,823,698.25
5. Step 5: Solve for x
   x = 5,823,698.25/3,556.52
6. Step 6: Final answer
   x = 1,637.47