Finding the Fourth Proportional to 2,387.34, 3,582.09 and 1,155.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.34 : 3,582.09 = 1,155.87 : x
2. Step 2: Convert to fraction form
   2,387.34/3,582.09 = 1,155.87/x
3. Step 3: Cross multiply
   2,387.34x = 3,582.09 × 1,155.87
4. Step 4: Simplify right side
   2,387.34x = 4,140,430.37
5. Step 5: Solve for x
   x = 4,140,430.37/2,387.34
6. Step 6: Final answer
   x = 1,734.33