Finding the Fourth Proportional to 2,174.06, 3,000.12 and 1,179.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,174.06 : 3,000.12 = 1,179.31 : x
2. Step 2: Convert to fraction form
   2,174.06/3,000.12 = 1,179.31/x
3. Step 3: Cross multiply
   2,174.06x = 3,000.12 × 1,179.31
4. Step 4: Simplify right side
   2,174.06x = 3,538,056.52
5. Step 5: Solve for x
   x = 3,538,056.52/2,174.06
6. Step 6: Final answer
   x = 1,627.40