Finding the Fourth Proportional to 1,329.89, 1,994.73 and 549.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,329.89 : 1,994.73 = 549.69 : x
2. Step 2: Convert to fraction form
   1,329.89/1,994.73 = 549.69/x
3. Step 3: Cross multiply
   1,329.89x = 1,994.73 × 549.69
4. Step 4: Simplify right side
   1,329.89x = 1,096,473.59
5. Step 5: Solve for x
   x = 1,096,473.59/1,329.89
6. Step 6: Final answer
   x = 824.49