Finding the Fourth Proportional to 2,555.59, 3,526.95 and 1,436.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555.59 : 3,526.95 = 1,436.80 : x
2. Step 2: Convert to fraction form
   2,555.59/3,526.95 = 1,436.80/x
3. Step 3: Cross multiply
   2,555.59x = 3,526.95 × 1,436.80
4. Step 4: Simplify right side
   2,555.59x = 5,067,514.58
5. Step 5: Solve for x
   x = 5,067,514.58/2,555.59
6. Step 6: Final answer
   x = 1,982.91