Finding the Fourth Proportional to 1,100.82, 1,649.40 and 667.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.82 : 1,649.40 = 667.08 : x
2. Step 2: Convert to fraction form
   1,100.82/1,649.40 = 667.08/x
3. Step 3: Cross multiply
   1,100.82x = 1,649.40 × 667.08
4. Step 4: Simplify right side
   1,100.82x = 1,100,281.75
5. Step 5: Solve for x
   x = 1,100,281.75/1,100.82
6. Step 6: Final answer
   x = 999.51