Finding the Fourth Proportional to 2,315.73, 3,196.27 and 1,431

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.73 : 3,196.27 = 1,431 : x
2. Step 2: Convert to fraction form
   2,315.73/3,196.27 = 1,431/x
3. Step 3: Cross multiply
   2,315.73x = 3,196.27 × 1,431
4. Step 4: Simplify right side
   2,315.73x = 4,573,862.37
5. Step 5: Solve for x
   x = 4,573,862.37/2,315.73
6. Step 6: Final answer
   x = 1,975.13