Finding the Fourth Proportional to 2,756.33, 4,134.89 and 907.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,756.33 : 4,134.89 = 907.10 : x
2. Step 2: Convert to fraction form
   2,756.33/4,134.89 = 907.10/x
3. Step 3: Cross multiply
   2,756.33x = 4,134.89 × 907.10
4. Step 4: Simplify right side
   2,756.33x = 3,750,758.72
5. Step 5: Solve for x
   x = 3,750,758.72/2,756.33
6. Step 6: Final answer
   x = 1,360.78