Finding the Fourth Proportional to 2,803.82, 3,868.34 and 1,809.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,803.82 : 3,868.34 = 1,809.77 : x
2. Step 2: Convert to fraction form
   2,803.82/3,868.34 = 1,809.77/x
3. Step 3: Cross multiply
   2,803.82x = 3,868.34 × 1,809.77
4. Step 4: Simplify right side
   2,803.82x = 7,000,790.86
5. Step 5: Solve for x
   x = 7,000,790.86/2,803.82
6. Step 6: Final answer
   x = 2,496.87