Finding the Fourth Proportional to 1,132.87, 1,694.73 and 980.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132.87 : 1,694.73 = 980.50 : x
2. Step 2: Convert to fraction form
   1,132.87/1,694.73 = 980.50/x
3. Step 3: Cross multiply
   1,132.87x = 1,694.73 × 980.50
4. Step 4: Simplify right side
   1,132.87x = 1,661,682.77
5. Step 5: Solve for x
   x = 1,661,682.77/1,132.87
6. Step 6: Final answer
   x = 1,466.79