Finding the Fourth Proportional to 1,366.22, 1,884.56 and 992.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366.22 : 1,884.56 = 992.76 : x
2. Step 2: Convert to fraction form
   1,366.22/1,884.56 = 992.76/x
3. Step 3: Cross multiply
   1,366.22x = 1,884.56 × 992.76
4. Step 4: Simplify right side
   1,366.22x = 1,870,915.79
5. Step 5: Solve for x
   x = 1,870,915.79/1,366.22
6. Step 6: Final answer
   x = 1,369.41