Finding the Fourth Proportional to 1,243.34, 1,714.61 and 801.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243.34 : 1,714.61 = 801.38 : x
2. Step 2: Convert to fraction form
   1,243.34/1,714.61 = 801.38/x
3. Step 3: Cross multiply
   1,243.34x = 1,714.61 × 801.38
4. Step 4: Simplify right side
   1,243.34x = 1,374,041.58
5. Step 5: Solve for x
   x = 1,374,041.58/1,243.34
6. Step 6: Final answer
   x = 1,105.13