Finding the Fourth Proportional to 1,766.68, 2,437.94 and 980.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,766.68 : 2,437.94 = 980.72 : x
2. Step 2: Convert to fraction form
   1,766.68/2,437.94 = 980.72/x
3. Step 3: Cross multiply
   1,766.68x = 2,437.94 × 980.72
4. Step 4: Simplify right side
   1,766.68x = 2,390,936.52
5. Step 5: Solve for x
   x = 2,390,936.52/1,766.68
6. Step 6: Final answer
   x = 1,353.35