Finding the Fourth Proportional to 1,103.50, 1,649.15 and 886.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.50 : 1,649.15 = 886.06 : x
2. Step 2: Convert to fraction form
   1,103.50/1,649.15 = 886.06/x
3. Step 3: Cross multiply
   1,103.50x = 1,649.15 × 886.06
4. Step 4: Simplify right side
   1,103.50x = 1,461,241.42
5. Step 5: Solve for x
   x = 1,461,241.42/1,103.50
6. Step 6: Final answer
   x = 1,324.19