Finding the Fourth Proportional to 2,787.18, 3,846.10 and 1,528.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,787.18 : 3,846.10 = 1,528.04 : x
2. Step 2: Convert to fraction form
   2,787.18/3,846.10 = 1,528.04/x
3. Step 3: Cross multiply
   2,787.18x = 3,846.10 × 1,528.04
4. Step 4: Simplify right side
   2,787.18x = 5,876,994.64
5. Step 5: Solve for x
   x = 5,876,994.64/2,787.18
6. Step 6: Final answer
   x = 2,108.58