Finding the Fourth Proportional to 3,867.10, 5,803.71 and 1,788.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,867.10 : 5,803.71 = 1,788.10 : x
2. Step 2: Convert to fraction form
   3,867.10/5,803.71 = 1,788.10/x
3. Step 3: Cross multiply
   3,867.10x = 5,803.71 × 1,788.10
4. Step 4: Simplify right side
   3,867.10x = 10,377,613.85
5. Step 5: Solve for x
   x = 10,377,613.85/3,867.10
6. Step 6: Final answer
   x = 2,683.56