Finding the Fourth Proportional to 2,610.32, 3,602.10 and 1,431.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.32 : 3,602.10 = 1,431.18 : x
2. Step 2: Convert to fraction form
   2,610.32/3,602.10 = 1,431.18/x
3. Step 3: Cross multiply
   2,610.32x = 3,602.10 × 1,431.18
4. Step 4: Simplify right side
   2,610.32x = 5,155,253.48
5. Step 5: Solve for x
   x = 5,155,253.48/2,610.32
6. Step 6: Final answer
   x = 1,974.95