Finding the Fourth Proportional to 2,605.47, 3,595.61 and 1,557.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.47 : 3,595.61 = 1,557.54 : x
2. Step 2: Convert to fraction form
   2,605.47/3,595.61 = 1,557.54/x
3. Step 3: Cross multiply
   2,605.47x = 3,595.61 × 1,557.54
4. Step 4: Simplify right side
   2,605.47x = 5,600,306.40
5. Step 5: Solve for x
   x = 5,600,306.40/2,605.47
6. Step 6: Final answer
   x = 2,149.44