Finding the Fourth Proportional to 1,379.34, 2,067.12 and 802.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,379.34 : 2,067.12 = 802.62 : x
2. Step 2: Convert to fraction form
   1,379.34/2,067.12 = 802.62/x
3. Step 3: Cross multiply
   1,379.34x = 2,067.12 × 802.62
4. Step 4: Simplify right side
   1,379.34x = 1,659,111.85
5. Step 5: Solve for x
   x = 1,659,111.85/1,379.34
6. Step 6: Final answer
   x = 1,202.83