Finding the Fourth Proportional to 2,443.18, 3,666.82 and 1,057.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.18 : 3,666.82 = 1,057.58 : x
2. Step 2: Convert to fraction form
   2,443.18/3,666.82 = 1,057.58/x
3. Step 3: Cross multiply
   2,443.18x = 3,666.82 × 1,057.58
4. Step 4: Simplify right side
   2,443.18x = 3,877,934.52
5. Step 5: Solve for x
   x = 3,877,934.52/2,443.18
6. Step 6: Final answer
   x = 1,587.25