Finding the Fourth Proportional to 2,409.07, 3,612.89 and 1,022.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,409.07 : 3,612.89 = 1,022.39 : x
2. Step 2: Convert to fraction form
   2,409.07/3,612.89 = 1,022.39/x
3. Step 3: Cross multiply
   2,409.07x = 3,612.89 × 1,022.39
4. Step 4: Simplify right side
   2,409.07x = 3,693,782.61
5. Step 5: Solve for x
   x = 3,693,782.61/2,409.07
6. Step 6: Final answer
   x = 1,533.28