Finding the Fourth Proportional to 2,308.78, 3,185.96 and 1,314.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.78 : 3,185.96 = 1,314.03 : x
2. Step 2: Convert to fraction form
   2,308.78/3,185.96 = 1,314.03/x
3. Step 3: Cross multiply
   2,308.78x = 3,185.96 × 1,314.03
4. Step 4: Simplify right side
   2,308.78x = 4,186,447.02
5. Step 5: Solve for x
   x = 4,186,447.02/2,308.78
6. Step 6: Final answer
   x = 1,813.27