Finding the Fourth Proportional to 2,895.06, 3,993.72 and 1,900.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,895.06 : 3,993.72 = 1,900.20 : x
2. Step 2: Convert to fraction form
   2,895.06/3,993.72 = 1,900.20/x
3. Step 3: Cross multiply
   2,895.06x = 3,993.72 × 1,900.20
4. Step 4: Simplify right side
   2,895.06x = 7,588,866.74
5. Step 5: Solve for x
   x = 7,588,866.74/2,895.06
6. Step 6: Final answer
   x = 2,621.32