Finding the Fourth Proportional to 3,525.49, 5,287.43 and 1,059.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,525.49 : 5,287.43 = 1,059.98 : x
2. Step 2: Convert to fraction form
   3,525.49/5,287.43 = 1,059.98/x
3. Step 3: Cross multiply
   3,525.49x = 5,287.43 × 1,059.98
4. Step 4: Simplify right side
   3,525.49x = 5,604,585.92
5. Step 5: Solve for x
   x = 5,604,585.92/3,525.49
6. Step 6: Final answer
   x = 1,589.73