Finding the Fourth Proportional to 2,186.19, 3,015.98 and 1,477.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,186.19 : 3,015.98 = 1,477.78 : x
2. Step 2: Convert to fraction form
   2,186.19/3,015.98 = 1,477.78/x
3. Step 3: Cross multiply
   2,186.19x = 3,015.98 × 1,477.78
4. Step 4: Simplify right side
   2,186.19x = 4,456,951.08
5. Step 5: Solve for x
   x = 4,456,951.08/2,186.19
6. Step 6: Final answer
   x = 2,038.68