Finding the Fourth Proportional to 2,185.81, 3,016.91 and 1,302.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.81 : 3,016.91 = 1,302.30 : x
2. Step 2: Convert to fraction form
   2,185.81/3,016.91 = 1,302.30/x
3. Step 3: Cross multiply
   2,185.81x = 3,016.91 × 1,302.30
4. Step 4: Simplify right side
   2,185.81x = 3,928,925.15
5. Step 5: Solve for x
   x = 3,928,925.15/2,185.81
6. Step 6: Final answer
   x = 1,797.47