Finding the Fourth Proportional to 3,870.96, 5,804.60 and 1,790.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.96 : 5,804.60 = 1,790.34 : x
2. Step 2: Convert to fraction form
   3,870.96/5,804.60 = 1,790.34/x
3. Step 3: Cross multiply
   3,870.96x = 5,804.60 × 1,790.34
4. Step 4: Simplify right side
   3,870.96x = 10,392,207.56
5. Step 5: Solve for x
   x = 10,392,207.56/3,870.96
6. Step 6: Final answer
   x = 2,684.66