Finding the Fourth Proportional to 2,557.69, 3,529.88 and 1,495.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557.69 : 3,529.88 = 1,495.78 : x
2. Step 2: Convert to fraction form
   2,557.69/3,529.88 = 1,495.78/x
3. Step 3: Cross multiply
   2,557.69x = 3,529.88 × 1,495.78
4. Step 4: Simplify right side
   2,557.69x = 5,279,918.82
5. Step 5: Solve for x
   x = 5,279,918.82/2,557.69
6. Step 6: Final answer
   x = 2,064.33