Finding the Fourth Proportional to 2,786.10, 3,844.88 and 1,667.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,786.10 : 3,844.88 = 1,667.15 : x
2. Step 2: Convert to fraction form
   2,786.10/3,844.88 = 1,667.15/x
3. Step 3: Cross multiply
   2,786.10x = 3,844.88 × 1,667.15
4. Step 4: Simplify right side
   2,786.10x = 6,409,964.13
5. Step 5: Solve for x
   x = 6,409,964.13/2,786.10
6. Step 6: Final answer
   x = 2,300.69