Finding the Fourth Proportional to 2,015.85, 3,018.61 and 1,194.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.85 : 3,018.61 = 1,194.72 : x
2. Step 2: Convert to fraction form
   2,015.85/3,018.61 = 1,194.72/x
3. Step 3: Cross multiply
   2,015.85x = 3,018.61 × 1,194.72
4. Step 4: Simplify right side
   2,015.85x = 3,606,393.74
5. Step 5: Solve for x
   x = 3,606,393.74/2,015.85
6. Step 6: Final answer
   x = 1,789.02