Finding the Fourth Proportional to 1,384.65, 2,080.32 and 800.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.65 : 2,080.32 = 800.04 : x
2. Step 2: Convert to fraction form
   1,384.65/2,080.32 = 800.04/x
3. Step 3: Cross multiply
   1,384.65x = 2,080.32 × 800.04
4. Step 4: Simplify right side
   1,384.65x = 1,664,339.21
5. Step 5: Solve for x
   x = 1,664,339.21/1,384.65
6. Step 6: Final answer
   x = 1,201.99