Finding the Fourth Proportional to 2,314.89, 3,194.73 and 1,431.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,314.89 : 3,194.73 = 1,431.18 : x
2. Step 2: Convert to fraction form
   2,314.89/3,194.73 = 1,431.18/x
3. Step 3: Cross multiply
   2,314.89x = 3,194.73 × 1,431.18
4. Step 4: Simplify right side
   2,314.89x = 4,572,233.68
5. Step 5: Solve for x
   x = 4,572,233.68/2,314.89
6. Step 6: Final answer
   x = 1,975.14