Finding the Fourth Proportional to 5,123.28, 7,686.06 and 1,838.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,123.28 : 7,686.06 = 1,838.76 : x
2. Step 2: Convert to fraction form
   5,123.28/7,686.06 = 1,838.76/x
3. Step 3: Cross multiply
   5,123.28x = 7,686.06 × 1,838.76
4. Step 4: Simplify right side
   5,123.28x = 14,132,819.69
5. Step 5: Solve for x
   x = 14,132,819.69/5,123.28
6. Step 6: Final answer
   x = 2,758.55