Finding the Fourth Proportional to 2,123.38, 2,930.16 and 1,179.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.38 : 2,930.16 = 1,179.16 : x
2. Step 2: Convert to fraction form
   2,123.38/2,930.16 = 1,179.16/x
3. Step 3: Cross multiply
   2,123.38x = 2,930.16 × 1,179.16
4. Step 4: Simplify right side
   2,123.38x = 3,455,127.47
5. Step 5: Solve for x
   x = 3,455,127.47/2,123.38
6. Step 6: Final answer
   x = 1,627.18