Finding the Fourth Proportional to 2,076.94, 3,115.61 and 907.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.94 : 3,115.61 = 907.30 : x
2. Step 2: Convert to fraction form
   2,076.94/3,115.61 = 907.30/x
3. Step 3: Cross multiply
   2,076.94x = 3,115.61 × 907.30
4. Step 4: Simplify right side
   2,076.94x = 2,826,772.84
5. Step 5: Solve for x
   x = 2,826,772.84/2,076.94
6. Step 6: Final answer
   x = 1,361.03