Finding the Fourth Proportional to 2,308.16, 3,185.14 and 1,299.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.16 : 3,185.14 = 1,299.81 : x
2. Step 2: Convert to fraction form
   2,308.16/3,185.14 = 1,299.81/x
3. Step 3: Cross multiply
   2,308.16x = 3,185.14 × 1,299.81
4. Step 4: Simplify right side
   2,308.16x = 4,140,076.82
5. Step 5: Solve for x
   x = 4,140,076.82/2,308.16
6. Step 6: Final answer
   x = 1,793.67