Finding the Fourth Proportional to 1,271.68, 1,755.56 and 800.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,271.68 : 1,755.56 = 800.26 : x
2. Step 2: Convert to fraction form
   1,271.68/1,755.56 = 800.26/x
3. Step 3: Cross multiply
   1,271.68x = 1,755.56 × 800.26
4. Step 4: Simplify right side
   1,271.68x = 1,404,904.45
5. Step 5: Solve for x
   x = 1,404,904.45/1,271.68
6. Step 6: Final answer
   x = 1,104.76