Finding the Fourth Proportional to 2,787.59, 3,846.78 and 1,528.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,787.59 : 3,846.78 = 1,528.62 : x
2. Step 2: Convert to fraction form
   2,787.59/3,846.78 = 1,528.62/x
3. Step 3: Cross multiply
   2,787.59x = 3,846.78 × 1,528.62
4. Step 4: Simplify right side
   2,787.59x = 5,880,264.84
5. Step 5: Solve for x
   x = 5,880,264.84/2,787.59
6. Step 6: Final answer
   x = 2,109.44