Finding the Fourth Proportional to 2,389.82, 3,582.14 and 1,155.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.82 : 3,582.14 = 1,155.53 : x
2. Step 2: Convert to fraction form
   2,389.82/3,582.14 = 1,155.53/x
3. Step 3: Cross multiply
   2,389.82x = 3,582.14 × 1,155.53
4. Step 4: Simplify right side
   2,389.82x = 4,139,246.55
5. Step 5: Solve for x
   x = 4,139,246.55/2,389.82
6. Step 6: Final answer
   x = 1,732.04