Finding the Fourth Proportional to 2,021.80, 3,033.06 and 705.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021.80 : 3,033.06 = 705.50 : x
2. Step 2: Convert to fraction form
   2,021.80/3,033.06 = 705.50/x
3. Step 3: Cross multiply
   2,021.80x = 3,033.06 × 705.50
4. Step 4: Simplify right side
   2,021.80x = 2,139,823.83
5. Step 5: Solve for x
   x = 2,139,823.83/2,021.80
6. Step 6: Final answer
   x = 1,058.38