Finding the Fourth Proportional to 1,508.27, 2,259.33 and 890.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,508.27 : 2,259.33 = 890.10 : x
2. Step 2: Convert to fraction form
   1,508.27/2,259.33 = 890.10/x
3. Step 3: Cross multiply
   1,508.27x = 2,259.33 × 890.10
4. Step 4: Simplify right side
   1,508.27x = 2,011,033.23
5. Step 5: Solve for x
   x = 2,011,033.23/1,508.27
6. Step 6: Final answer
   x = 1,333.34