Finding the Fourth Proportional to 3,981.38, 5,973.32 and 1,790.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,981.38 : 5,973.32 = 1,790.30 : x
2. Step 2: Convert to fraction form
   3,981.38/5,973.32 = 1,790.30/x
3. Step 3: Cross multiply
   3,981.38x = 5,973.32 × 1,790.30
4. Step 4: Simplify right side
   3,981.38x = 10,694,009.41
5. Step 5: Solve for x
   x = 10,694,009.41/3,981.38
6. Step 6: Final answer
   x = 2,686.01