Finding the Fourth Proportional to 3,612.69, 5,419.22 and 1,015.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,612.69 : 5,419.22 = 1,015.83 : x
2. Step 2: Convert to fraction form
   3,612.69/5,419.22 = 1,015.83/x
3. Step 3: Cross multiply
   3,612.69x = 5,419.22 × 1,015.83
4. Step 4: Simplify right side
   3,612.69x = 5,505,006.25
5. Step 5: Solve for x
   x = 5,505,006.25/3,612.69
6. Step 6: Final answer
   x = 1,523.80