Finding the Fourth Proportional to 2,357.69, 3,534.70 and 1,058.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,357.69 : 3,534.70 = 1,058.25 : x
2. Step 2: Convert to fraction form
   2,357.69/3,534.70 = 1,058.25/x
3. Step 3: Cross multiply
   2,357.69x = 3,534.70 × 1,058.25
4. Step 4: Simplify right side
   2,357.69x = 3,740,596.28
5. Step 5: Solve for x
   x = 3,740,596.28/2,357.69
6. Step 6: Final answer
   x = 1,586.55