Finding the Fourth Proportional to 2,123.88, 2,931.14 and 1,179.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.88 : 2,931.14 = 1,179.83 : x
2. Step 2: Convert to fraction form
   2,123.88/2,931.14 = 1,179.83/x
3. Step 3: Cross multiply
   2,123.88x = 2,931.14 × 1,179.83
4. Step 4: Simplify right side
   2,123.88x = 3,458,241.91
5. Step 5: Solve for x
   x = 3,458,241.91/2,123.88
6. Step 6: Final answer
   x = 1,628.26