Finding the Fourth Proportional to 2,555.78, 3,526.84 and 1,436.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555.78 : 3,526.84 = 1,436.76 : x
2. Step 2: Convert to fraction form
   2,555.78/3,526.84 = 1,436.76/x
3. Step 3: Cross multiply
   2,555.78x = 3,526.84 × 1,436.76
4. Step 4: Simplify right side
   2,555.78x = 5,067,222.64
5. Step 5: Solve for x
   x = 5,067,222.64/2,555.78
6. Step 6: Final answer
   x = 1,982.65