Finding the Fourth Proportional to 2,554.20, 3,524.50 and 1,435

Step by Step Solution

1. Step 1: Write the proportion equation
   2,554.20 : 3,524.50 = 1,435 : x
2. Step 2: Convert to fraction form
   2,554.20/3,524.50 = 1,435/x
3. Step 3: Cross multiply
   2,554.20x = 3,524.50 × 1,435
4. Step 4: Simplify right side
   2,554.20x = 5,057,657.50
5. Step 5: Solve for x
   x = 5,057,657.50/2,554.20
6. Step 6: Final answer
   x = 1,980.13