Finding the Fourth Proportional to 1,990.95, 2,751.04 and 1,433.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.95 : 2,751.04 = 1,433.27 : x
2. Step 2: Convert to fraction form
   1,990.95/2,751.04 = 1,433.27/x
3. Step 3: Cross multiply
   1,990.95x = 2,751.04 × 1,433.27
4. Step 4: Simplify right side
   1,990.95x = 3,942,983.10
5. Step 5: Solve for x
   x = 3,942,983.10/1,990.95
6. Step 6: Final answer
   x = 1,980.45