Finding the Fourth Proportional to 2,786.96, 3,846.05 and 1,528.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,786.96 : 3,846.05 = 1,528.13 : x
2. Step 2: Convert to fraction form
   2,786.96/3,846.05 = 1,528.13/x
3. Step 3: Cross multiply
   2,786.96x = 3,846.05 × 1,528.13
4. Step 4: Simplify right side
   2,786.96x = 5,877,237.52
5. Step 5: Solve for x
   x = 5,877,237.52/2,786.96
6. Step 6: Final answer
   x = 2,108.84