Finding the Fourth Proportional to 2,930.31, 4,390.83 and 2,379.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,930.31 : 4,390.83 = 2,379.83 : x
2. Step 2: Convert to fraction form
   2,930.31/4,390.83 = 2,379.83/x
3. Step 3: Cross multiply
   2,930.31x = 4,390.83 × 2,379.83
4. Step 4: Simplify right side
   2,930.31x = 10,449,407.00
5. Step 5: Solve for x
   x = 10,449,407.00/2,930.31
6. Step 6: Final answer
   x = 3,565.97