Finding the Fourth Proportional to 1,604.10, 2,404.43 and 727.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,604.10 : 2,404.43 = 727.07 : x
2. Step 2: Convert to fraction form
   1,604.10/2,404.43 = 727.07/x
3. Step 3: Cross multiply
   1,604.10x = 2,404.43 × 727.07
4. Step 4: Simplify right side
   1,604.10x = 1,748,188.92
5. Step 5: Solve for x
   x = 1,748,188.92/1,604.10
6. Step 6: Final answer
   x = 1,089.83