Finding the Fourth Proportional to 2,015.56, 2,780.98 and 1,544.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.56 : 2,780.98 = 1,544.00 : x
2. Step 2: Convert to fraction form
   2,015.56/2,780.98 = 1,544.00/x
3. Step 3: Cross multiply
   2,015.56x = 2,780.98 × 1,544.00
4. Step 4: Simplify right side
   2,015.56x = 4,293,815.36
5. Step 5: Solve for x
   x = 4,293,815.36/2,015.56
6. Step 6: Final answer
   x = 2,130.33