Finding the Fourth Proportional to 1,765.56, 2,436.57 and 979.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,765.56 : 2,436.57 = 979.59 : x
2. Step 2: Convert to fraction form
   1,765.56/2,436.57 = 979.59/x
3. Step 3: Cross multiply
   1,765.56x = 2,436.57 × 979.59
4. Step 4: Simplify right side
   1,765.56x = 2,386,839.61
5. Step 5: Solve for x
   x = 2,386,839.61/1,765.56
6. Step 6: Final answer
   x = 1,351.89