Finding the Fourth Proportional to 1,995.25, 2,752.50 and 1,406.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,995.25 : 2,752.50 = 1,406.11 : x
2. Step 2: Convert to fraction form
   1,995.25/2,752.50 = 1,406.11/x
3. Step 3: Cross multiply
   1,995.25x = 2,752.50 × 1,406.11
4. Step 4: Simplify right side
   1,995.25x = 3,870,317.78
5. Step 5: Solve for x
   x = 3,870,317.78/1,995.25
6. Step 6: Final answer
   x = 1,939.77