Finding the Fourth Proportional to 2,061.84, 3,093.12 and 907.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.84 : 3,093.12 = 907.68 : x
2. Step 2: Convert to fraction form
   2,061.84/3,093.12 = 907.68/x
3. Step 3: Cross multiply
   2,061.84x = 3,093.12 × 907.68
4. Step 4: Simplify right side
   2,061.84x = 2,807,563.16
5. Step 5: Solve for x
   x = 2,807,563.16/2,061.84
6. Step 6: Final answer
   x = 1,361.68