Finding the Fourth Proportional to 2,066.31, 3,098.66 and 911.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.31 : 3,098.66 = 911.25 : x
2. Step 2: Convert to fraction form
   2,066.31/3,098.66 = 911.25/x
3. Step 3: Cross multiply
   2,066.31x = 3,098.66 × 911.25
4. Step 4: Simplify right side
   2,066.31x = 2,823,649.37
5. Step 5: Solve for x
   x = 2,823,649.37/2,066.31
6. Step 6: Final answer
   x = 1,366.52