Finding the Fourth Proportional to 2,748.47, 4,122.77 and 800.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,748.47 : 4,122.77 = 800.82 : x
2. Step 2: Convert to fraction form
   2,748.47/4,122.77 = 800.82/x
3. Step 3: Cross multiply
   2,748.47x = 4,122.77 × 800.82
4. Step 4: Simplify right side
   2,748.47x = 3,301,592.67
5. Step 5: Solve for x
   x = 3,301,592.67/2,748.47
6. Step 6: Final answer
   x = 1,201.25