Finding the Fourth Proportional to 3,531.37, 5,295.78 and 1,065.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,531.37 : 5,295.78 = 1,065.43 : x
2. Step 2: Convert to fraction form
   3,531.37/5,295.78 = 1,065.43/x
3. Step 3: Cross multiply
   3,531.37x = 5,295.78 × 1,065.43
4. Step 4: Simplify right side
   3,531.37x = 5,642,282.89
5. Step 5: Solve for x
   x = 5,642,282.89/3,531.37
6. Step 6: Final answer
   x = 1,597.76