Finding the Fourth Proportional to 3,505.39, 5,259.17 and 1,040.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,505.39 : 5,259.17 = 1,040.22 : x
2. Step 2: Convert to fraction form
   3,505.39/5,259.17 = 1,040.22/x
3. Step 3: Cross multiply
   3,505.39x = 5,259.17 × 1,040.22
4. Step 4: Simplify right side
   3,505.39x = 5,470,696.42
5. Step 5: Solve for x
   x = 5,470,696.42/3,505.39
6. Step 6: Final answer
   x = 1,560.65