Finding the Fourth Proportional to 1,766.39, 2,437.49 and 980.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,766.39 : 2,437.49 = 980.42 : x
2. Step 2: Convert to fraction form
   1,766.39/2,437.49 = 980.42/x
3. Step 3: Cross multiply
   1,766.39x = 2,437.49 × 980.42
4. Step 4: Simplify right side
   1,766.39x = 2,389,746.86
5. Step 5: Solve for x
   x = 2,389,746.86/1,766.39
6. Step 6: Final answer
   x = 1,352.90