Finding the Fourth Proportional to 2,605.42, 3,595.38 and 1,557.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.42 : 3,595.38 = 1,557.28 : x
2. Step 2: Convert to fraction form
   2,605.42/3,595.38 = 1,557.28/x
3. Step 3: Cross multiply
   2,605.42x = 3,595.38 × 1,557.28
4. Step 4: Simplify right side
   2,605.42x = 5,599,013.37
5. Step 5: Solve for x
   x = 5,599,013.37/2,605.42
6. Step 6: Final answer
   x = 2,148.99