Finding the Fourth Proportional to 2,185, 3,015.27 and 1,300.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185 : 3,015.27 = 1,300.78 : x
2. Step 2: Convert to fraction form
   2,185/3,015.27 = 1,300.78/x
3. Step 3: Cross multiply
   2,185x = 3,015.27 × 1,300.78
4. Step 4: Simplify right side
   2,185x = 3,922,202.91
5. Step 5: Solve for x
   x = 3,922,202.91/2,185
6. Step 6: Final answer
   x = 1,795.06