Finding the Fourth Proportional to 1,621.24, 2,430.79 and 800.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,621.24 : 2,430.79 = 800.06 : x
2. Step 2: Convert to fraction form
   1,621.24/2,430.79 = 800.06/x
3. Step 3: Cross multiply
   1,621.24x = 2,430.79 × 800.06
4. Step 4: Simplify right side
   1,621.24x = 1,944,763.69
5. Step 5: Solve for x
   x = 1,944,763.69/1,621.24
6. Step 6: Final answer
   x = 1,199.56