Finding the Fourth Proportional to 2,173.08, 2,998.83 and 1,178.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173.08 : 2,998.83 = 1,178.38 : x
2. Step 2: Convert to fraction form
   2,173.08/2,998.83 = 1,178.38/x
3. Step 3: Cross multiply
   2,173.08x = 2,998.83 × 1,178.38
4. Step 4: Simplify right side
   2,173.08x = 3,533,761.30
5. Step 5: Solve for x
   x = 3,533,761.30/2,173.08
6. Step 6: Final answer
   x = 1,626.15