Finding the Fourth Proportional to 3,613.17, 5,419.15 and 1,015.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,613.17 : 5,419.15 = 1,015.50 : x
2. Step 2: Convert to fraction form
   3,613.17/5,419.15 = 1,015.50/x
3. Step 3: Cross multiply
   3,613.17x = 5,419.15 × 1,015.50
4. Step 4: Simplify right side
   3,613.17x = 5,503,146.83
5. Step 5: Solve for x
   x = 5,503,146.83/3,613.17
6. Step 6: Final answer
   x = 1,523.08