Finding the Fourth Proportional to 1,520.09, 2,098.25 and 890.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,520.09 : 2,098.25 = 890.82 : x
2. Step 2: Convert to fraction form
   1,520.09/2,098.25 = 890.82/x
3. Step 3: Cross multiply
   1,520.09x = 2,098.25 × 890.82
4. Step 4: Simplify right side
   1,520.09x = 1,869,158.61
5. Step 5: Solve for x
   x = 1,869,158.61/1,520.09
6. Step 6: Final answer
   x = 1,229.64