Finding the Fourth Proportional to 2,173.37, 2,999.24 and 1,178.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173.37 : 2,999.24 = 1,178.64 : x
2. Step 2: Convert to fraction form
   2,173.37/2,999.24 = 1,178.64/x
3. Step 3: Cross multiply
   2,173.37x = 2,999.24 × 1,178.64
4. Step 4: Simplify right side
   2,173.37x = 3,535,018.34
5. Step 5: Solve for x
   x = 3,535,018.34/2,173.37
6. Step 6: Final answer
   x = 1,626.52