Finding the Fourth Proportional to 1,176.73, 1,621.89 and 893.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,176.73 : 1,621.89 = 893.05 : x
2. Step 2: Convert to fraction form
   1,176.73/1,621.89 = 893.05/x
3. Step 3: Cross multiply
   1,176.73x = 1,621.89 × 893.05
4. Step 4: Simplify right side
   1,176.73x = 1,448,428.86
5. Step 5: Solve for x
   x = 1,448,428.86/1,176.73
6. Step 6: Final answer
   x = 1,230.89