Finding the Fourth Proportional to 2,159.82, 3,239.10 and 773.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159.82 : 3,239.10 = 773.46 : x
2. Step 2: Convert to fraction form
   2,159.82/3,239.10 = 773.46/x
3. Step 3: Cross multiply
   2,159.82x = 3,239.10 × 773.46
4. Step 4: Simplify right side
   2,159.82x = 2,505,314.29
5. Step 5: Solve for x
   x = 2,505,314.29/2,159.82
6. Step 6: Final answer
   x = 1,159.96