Finding the Fourth Proportional to 2,065.10, 3,097.62 and 1,431.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.10 : 3,097.62 = 1,431.29 : x
2. Step 2: Convert to fraction form
   2,065.10/3,097.62 = 1,431.29/x
3. Step 3: Cross multiply
   2,065.10x = 3,097.62 × 1,431.29
4. Step 4: Simplify right side
   2,065.10x = 4,433,592.53
5. Step 5: Solve for x
   x = 4,433,592.53/2,065.10
6. Step 6: Final answer
   x = 2,146.91