Finding the Fourth Proportional to 2,606.28, 3,596.56 and 1,557.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.28 : 3,596.56 = 1,557.72 : x
2. Step 2: Convert to fraction form
   2,606.28/3,596.56 = 1,557.72/x
3. Step 3: Cross multiply
   2,606.28x = 3,596.56 × 1,557.72
4. Step 4: Simplify right side
   2,606.28x = 5,602,433.44
5. Step 5: Solve for x
   x = 5,602,433.44/2,606.28
6. Step 6: Final answer
   x = 2,149.59