Finding the Fourth Proportional to 1,450.26, 2,002.50 and 890.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,450.26 : 2,002.50 = 890.98 : x
2. Step 2: Convert to fraction form
   1,450.26/2,002.50 = 890.98/x
3. Step 3: Cross multiply
   1,450.26x = 2,002.50 × 890.98
4. Step 4: Simplify right side
   1,450.26x = 1,784,191.20
5. Step 5: Solve for x
   x = 1,784,191.20/1,450.26
6. Step 6: Final answer
   x = 1,230.25