Finding the Fourth Proportional to 1,322.84, 1,984.56 and 912.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322.84 : 1,984.56 = 912.14 : x
2. Step 2: Convert to fraction form
   1,322.84/1,984.56 = 912.14/x
3. Step 3: Cross multiply
   1,322.84x = 1,984.56 × 912.14
4. Step 4: Simplify right side
   1,322.84x = 1,810,196.56
5. Step 5: Solve for x
   x = 1,810,196.56/1,322.84
6. Step 6: Final answer
   x = 1,368.42