Finding the Fourth Proportional to 2,789.76, 3,849.86 and 1,530.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.76 : 3,849.86 = 1,530.79 : x
2. Step 2: Convert to fraction form
   2,789.76/3,849.86 = 1,530.79/x
3. Step 3: Cross multiply
   2,789.76x = 3,849.86 × 1,530.79
4. Step 4: Simplify right side
   2,789.76x = 5,893,321.39
5. Step 5: Solve for x
   x = 5,893,321.39/2,789.76
6. Step 6: Final answer
   x = 2,112.48