Finding the Fourth Proportional to 1,151.82, 1,589.72 and 647.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.82 : 1,589.72 = 647.79 : x
2. Step 2: Convert to fraction form
   1,151.82/1,589.72 = 647.79/x
3. Step 3: Cross multiply
   1,151.82x = 1,589.72 × 647.79
4. Step 4: Simplify right side
   1,151.82x = 1,029,801.48
5. Step 5: Solve for x
   x = 1,029,801.48/1,151.82
6. Step 6: Final answer
   x = 894.06