Finding the Fourth Proportional to 3,525.05, 5,287.61 and 1,059.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,525.05 : 5,287.61 = 1,059.92 : x
2. Step 2: Convert to fraction form
   3,525.05/5,287.61 = 1,059.92/x
3. Step 3: Cross multiply
   3,525.05x = 5,287.61 × 1,059.92
4. Step 4: Simplify right side
   3,525.05x = 5,604,411.85
5. Step 5: Solve for x
   x = 5,604,411.85/3,525.05
6. Step 6: Final answer
   x = 1,589.88