Finding the Fourth Proportional to 3,900.02, 5,853.10 and 1,818.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900.02 : 5,853.10 = 1,818.96 : x
2. Step 2: Convert to fraction form
   3,900.02/5,853.10 = 1,818.96/x
3. Step 3: Cross multiply
   3,900.02x = 5,853.10 × 1,818.96
4. Step 4: Simplify right side
   3,900.02x = 10,646,554.78
5. Step 5: Solve for x
   x = 10,646,554.78/3,900.02
6. Step 6: Final answer
   x = 2,729.87