Finding the Fourth Proportional to 3,902.06, 5,850.51 and 1,820.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,902.06 : 5,850.51 = 1,820.96 : x
2. Step 2: Convert to fraction form
   3,902.06/5,850.51 = 1,820.96/x
3. Step 3: Cross multiply
   3,902.06x = 5,850.51 × 1,820.96
4. Step 4: Simplify right side
   3,902.06x = 10,653,544.69
5. Step 5: Solve for x
   x = 10,653,544.69/3,902.06
6. Step 6: Final answer
   x = 2,730.24