Finding the Fourth Proportional to 1,634.58, 2,452.17 and 800.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,634.58 : 2,452.17 = 800.79 : x
2. Step 2: Convert to fraction form
   1,634.58/2,452.17 = 800.79/x
3. Step 3: Cross multiply
   1,634.58x = 2,452.17 × 800.79
4. Step 4: Simplify right side
   1,634.58x = 1,963,667.02
5. Step 5: Solve for x
   x = 1,963,667.02/1,634.58
6. Step 6: Final answer
   x = 1,201.33