Finding the Fourth Proportional to 2,535, 3,498.30 and 1,431

Step by Step Solution

1. Step 1: Write the proportion equation
   2,535 : 3,498.30 = 1,431 : x
2. Step 2: Convert to fraction form
   2,535/3,498.30 = 1,431/x
3. Step 3: Cross multiply
   2,535x = 3,498.30 × 1,431
4. Step 4: Simplify right side
   2,535x = 5,006,067.30
5. Step 5: Solve for x
   x = 5,006,067.30/2,535
6. Step 6: Final answer
   x = 1,974.78