Finding the Fourth Proportional to 2,604.28, 3,593.80 and 1,555.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,604.28 : 3,593.80 = 1,555.72 : x
2. Step 2: Convert to fraction form
   2,604.28/3,593.80 = 1,555.72/x
3. Step 3: Cross multiply
   2,604.28x = 3,593.80 × 1,555.72
4. Step 4: Simplify right side
   2,604.28x = 5,590,946.54
5. Step 5: Solve for x
   x = 5,590,946.54/2,604.28
6. Step 6: Final answer
   x = 2,146.83