Finding the Fourth Proportional to 2,610.07, 3,601.87 and 1,431.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.07 : 3,601.87 = 1,431.15 : x
2. Step 2: Convert to fraction form
   2,610.07/3,601.87 = 1,431.15/x
3. Step 3: Cross multiply
   2,610.07x = 3,601.87 × 1,431.15
4. Step 4: Simplify right side
   2,610.07x = 5,154,799.17
5. Step 5: Solve for x
   x = 5,154,799.17/2,610.07
6. Step 6: Final answer
   x = 1,974.97