Finding the Fourth Proportional to 1,452.81, 2,005.78 and 999.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,452.81 : 2,005.78 = 999.34 : x
2. Step 2: Convert to fraction form
   1,452.81/2,005.78 = 999.34/x
3. Step 3: Cross multiply
   1,452.81x = 2,005.78 × 999.34
4. Step 4: Simplify right side
   1,452.81x = 2,004,456.19
5. Step 5: Solve for x
   x = 2,004,456.19/1,452.81
6. Step 6: Final answer
   x = 1,379.71