Finding the Fourth Proportional to 941.09, 1,300.06 and 816.54

Step by Step Solution

1. Step 1: Write the proportion equation
   941.09 : 1,300.06 = 816.54 : x
2. Step 2: Convert to fraction form
   941.09/1,300.06 = 816.54/x
3. Step 3: Cross multiply
   941.09x = 1,300.06 × 816.54
4. Step 4: Simplify right side
   941.09x = 1,061,545.65
5. Step 5: Solve for x
   x = 1,061,545.65/941.09
6. Step 6: Final answer
   x = 1,127.99