Finding the Fourth Proportional to 2,787.15, 3,846.27 and 1,528.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,787.15 : 3,846.27 = 1,528.22 : x
2. Step 2: Convert to fraction form
   2,787.15/3,846.27 = 1,528.22/x
3. Step 3: Cross multiply
   2,787.15x = 3,846.27 × 1,528.22
4. Step 4: Simplify right side
   2,787.15x = 5,877,927.51
5. Step 5: Solve for x
   x = 5,877,927.51/2,787.15
6. Step 6: Final answer
   x = 2,108.94