Finding the Fourth Proportional to 4,892.88, 6,748.83 and 3,123.69

Step by Step Solution

1. Step 1: Write the proportion equation
   4,892.88 : 6,748.83 = 3,123.69 : x
2. Step 2: Convert to fraction form
   4,892.88/6,748.83 = 3,123.69/x
3. Step 3: Cross multiply
   4,892.88x = 6,748.83 × 3,123.69
4. Step 4: Simplify right side
   4,892.88x = 21,081,250.85
5. Step 5: Solve for x
   x = 21,081,250.85/4,892.88
6. Step 6: Final answer
   x = 4,308.56