Finding the Fourth Proportional to 2,581.89, 3,869.66 and 1,193.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.89 : 3,869.66 = 1,193.35 : x
2. Step 2: Convert to fraction form
   2,581.89/3,869.66 = 1,193.35/x
3. Step 3: Cross multiply
   2,581.89x = 3,869.66 × 1,193.35
4. Step 4: Simplify right side
   2,581.89x = 4,617,858.76
5. Step 5: Solve for x
   x = 4,617,858.76/2,581.89
6. Step 6: Final answer
   x = 1,788.56