Finding the Fourth Proportional to 2,379.83, 3,285.20 and 1,790.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.83 : 3,285.20 = 1,790.51 : x
2. Step 2: Convert to fraction form
   2,379.83/3,285.20 = 1,790.51/x
3. Step 3: Cross multiply
   2,379.83x = 3,285.20 × 1,790.51
4. Step 4: Simplify right side
   2,379.83x = 5,882,174.50
5. Step 5: Solve for x
   x = 5,882,174.50/2,379.83
6. Step 6: Final answer
   x = 2,471.68