Finding the Fourth Proportional to 3,540.83, 5,311.47 and 1,075.85

Step by Step Solution

1. Step 1: Write the proportion equation
   3,540.83 : 5,311.47 = 1,075.85 : x
2. Step 2: Convert to fraction form
   3,540.83/5,311.47 = 1,075.85/x
3. Step 3: Cross multiply
   3,540.83x = 5,311.47 × 1,075.85
4. Step 4: Simplify right side
   3,540.83x = 5,714,345.00
5. Step 5: Solve for x
   x = 5,714,345.00/3,540.83
6. Step 6: Final answer
   x = 1,613.84