Finding the Fourth Proportional to 1,766.56, 2,437.95 and 980.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,766.56 : 2,437.95 = 980.59 : x
2. Step 2: Convert to fraction form
   1,766.56/2,437.95 = 980.59/x
3. Step 3: Cross multiply
   1,766.56x = 2,437.95 × 980.59
4. Step 4: Simplify right side
   1,766.56x = 2,390,629.39
5. Step 5: Solve for x
   x = 2,390,629.39/1,766.56
6. Step 6: Final answer
   x = 1,353.27