Finding the Fourth Proportional to 2,081.53, 2,863.86 and 1,800.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.53 : 2,863.86 = 1,800.87 : x
2. Step 2: Convert to fraction form
   2,081.53/2,863.86 = 1,800.87/x
3. Step 3: Cross multiply
   2,081.53x = 2,863.86 × 1,800.87
4. Step 4: Simplify right side
   2,081.53x = 5,157,422.07
5. Step 5: Solve for x
   x = 5,157,422.07/2,081.53
6. Step 6: Final answer
   x = 2,477.71