Finding the Fourth Proportional to 2,173.55, 2,999.48 and 1,178.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173.55 : 2,999.48 = 1,178.82 : x
2. Step 2: Convert to fraction form
   2,173.55/2,999.48 = 1,178.82/x
3. Step 3: Cross multiply
   2,173.55x = 2,999.48 × 1,178.82
4. Step 4: Simplify right side
   2,173.55x = 3,535,841.12
5. Step 5: Solve for x
   x = 3,535,841.12/2,173.55
6. Step 6: Final answer
   x = 1,626.76