Finding the Fourth Proportional to 1,598.27, 2,205.47 and 890.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,598.27 : 2,205.47 = 890.09 : x
2. Step 2: Convert to fraction form
   1,598.27/2,205.47 = 890.09/x
3. Step 3: Cross multiply
   1,598.27x = 2,205.47 × 890.09
4. Step 4: Simplify right side
   1,598.27x = 1,963,066.79
5. Step 5: Solve for x
   x = 1,963,066.79/1,598.27
6. Step 6: Final answer
   x = 1,228.24