Finding the Fourth Proportional to 1,409.59, 2,104.04 and 1,243.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.59 : 2,104.04 = 1,243.32 : x
2. Step 2: Convert to fraction form
   1,409.59/2,104.04 = 1,243.32/x
3. Step 3: Cross multiply
   1,409.59x = 2,104.04 × 1,243.32
4. Step 4: Simplify right side
   1,409.59x = 2,615,995.01
5. Step 5: Solve for x
   x = 2,615,995.01/1,409.59
6. Step 6: Final answer
   x = 1,855.86