Finding the Fourth Proportional to 1,498.22, 2,241.86 and 911.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.22 : 2,241.86 = 911.07 : x
2. Step 2: Convert to fraction form
   1,498.22/2,241.86 = 911.07/x
3. Step 3: Cross multiply
   1,498.22x = 2,241.86 × 911.07
4. Step 4: Simplify right side
   1,498.22x = 2,042,491.39
5. Step 5: Solve for x
   x = 2,042,491.39/1,498.22
6. Step 6: Final answer
   x = 1,363.28