Finding the Fourth Proportional to 1,322.94, 1,980.31 and 976.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322.94 : 1,980.31 = 976.67 : x
2. Step 2: Convert to fraction form
   1,322.94/1,980.31 = 976.67/x
3. Step 3: Cross multiply
   1,322.94x = 1,980.31 × 976.67
4. Step 4: Simplify right side
   1,322.94x = 1,934,109.37
5. Step 5: Solve for x
   x = 1,934,109.37/1,322.94
6. Step 6: Final answer
   x = 1,461.98