Finding the Fourth Proportional to 1,765.46, 2,436.35 and 979.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,765.46 : 2,436.35 = 979.50 : x
2. Step 2: Convert to fraction form
   1,765.46/2,436.35 = 979.50/x
3. Step 3: Cross multiply
   1,765.46x = 2,436.35 × 979.50
4. Step 4: Simplify right side
   1,765.46x = 2,386,404.83
5. Step 5: Solve for x
   x = 2,386,404.83/1,765.46
6. Step 6: Final answer
   x = 1,351.72