Finding the Fourth Proportional to 1,000.94, 1,499.37 and 816.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,000.94 : 1,499.37 = 816.50 : x
2. Step 2: Convert to fraction form
   1,000.94/1,499.37 = 816.50/x
3. Step 3: Cross multiply
   1,000.94x = 1,499.37 × 816.50
4. Step 4: Simplify right side
   1,000.94x = 1,224,235.61
5. Step 5: Solve for x
   x = 1,224,235.61/1,000.94
6. Step 6: Final answer
   x = 1,223.09