Finding the Fourth Proportional to 2,350.80, 3,524.13 and 890.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,350.80 : 3,524.13 = 890.98 : x
2. Step 2: Convert to fraction form
   2,350.80/3,524.13 = 890.98/x
3. Step 3: Cross multiply
   2,350.80x = 3,524.13 × 890.98
4. Step 4: Simplify right side
   2,350.80x = 3,139,929.35
5. Step 5: Solve for x
   x = 3,139,929.35/2,350.80
6. Step 6: Final answer
   x = 1,335.69