Finding the Fourth Proportional to 3,354.39, 5,028.35 and 2,123.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,354.39 : 5,028.35 = 2,123.19 : x
2. Step 2: Convert to fraction form
   3,354.39/5,028.35 = 2,123.19/x
3. Step 3: Cross multiply
   3,354.39x = 5,028.35 × 2,123.19
4. Step 4: Simplify right side
   3,354.39x = 10,676,131.82
5. Step 5: Solve for x
   x = 10,676,131.82/3,354.39
6. Step 6: Final answer
   x = 3,182.73