Finding the Fourth Proportional to 1,431.96, 1,976.00 and 802.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,431.96 : 1,976.00 = 802.44 : x
2. Step 2: Convert to fraction form
   1,431.96/1,976.00 = 802.44/x
3. Step 3: Cross multiply
   1,431.96x = 1,976.00 × 802.44
4. Step 4: Simplify right side
   1,431.96x = 1,585,617.43
5. Step 5: Solve for x
   x = 1,585,617.43/1,431.96
6. Step 6: Final answer
   x = 1,107.31