Finding the Fourth Proportional to 2,003.72, 3,006.03 and 705.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.72 : 3,006.03 = 705.20 : x
2. Step 2: Convert to fraction form
   2,003.72/3,006.03 = 705.20/x
3. Step 3: Cross multiply
   2,003.72x = 3,006.03 × 705.20
4. Step 4: Simplify right side
   2,003.72x = 2,119,837.33
5. Step 5: Solve for x
   x = 2,119,837.33/2,003.72
6. Step 6: Final answer
   x = 1,057.95