Finding the Fourth Proportional to 1,429.65, 1,972.67 and 800.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.65 : 1,972.67 = 800.16 : x
2. Step 2: Convert to fraction form
   1,429.65/1,972.67 = 800.16/x
3. Step 3: Cross multiply
   1,429.65x = 1,972.67 × 800.16
4. Step 4: Simplify right side
   1,429.65x = 1,578,451.63
5. Step 5: Solve for x
   x = 1,578,451.63/1,429.65
6. Step 6: Final answer
   x = 1,104.08