Finding the Fourth Proportional to 3,531.42, 5,295.42 and 1,065.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,531.42 : 5,295.42 = 1,065.60 : x
2. Step 2: Convert to fraction form
   3,531.42/5,295.42 = 1,065.60/x
3. Step 3: Cross multiply
   3,531.42x = 5,295.42 × 1,065.60
4. Step 4: Simplify right side
   3,531.42x = 5,642,799.55
5. Step 5: Solve for x
   x = 5,642,799.55/3,531.42
6. Step 6: Final answer
   x = 1,597.88