Finding the Fourth Proportional to 2,610.10, 3,601.69 and 1,431.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.10 : 3,601.69 = 1,431.19 : x
2. Step 2: Convert to fraction form
   2,610.10/3,601.69 = 1,431.19/x
3. Step 3: Cross multiply
   2,610.10x = 3,601.69 × 1,431.19
4. Step 4: Simplify right side
   2,610.10x = 5,154,702.71
5. Step 5: Solve for x
   x = 5,154,702.71/2,610.10
6. Step 6: Final answer
   x = 1,974.91