Finding the Fourth Proportional to 1,340.92, 1,849.98 and 816.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340.92 : 1,849.98 = 816.76 : x
2. Step 2: Convert to fraction form
   1,340.92/1,849.98 = 816.76/x
3. Step 3: Cross multiply
   1,340.92x = 1,849.98 × 816.76
4. Step 4: Simplify right side
   1,340.92x = 1,510,989.66
5. Step 5: Solve for x
   x = 1,510,989.66/1,340.92
6. Step 6: Final answer
   x = 1,126.83