Finding the Fourth Proportional to 1,766.34, 2,437.61 and 980.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,766.34 : 2,437.61 = 980.45 : x
2. Step 2: Convert to fraction form
   1,766.34/2,437.61 = 980.45/x
3. Step 3: Cross multiply
   1,766.34x = 2,437.61 × 980.45
4. Step 4: Simplify right side
   1,766.34x = 2,389,937.63
5. Step 5: Solve for x
   x = 2,389,937.63/1,766.34
6. Step 6: Final answer
   x = 1,353.05