Finding the Fourth Proportional to 1,314.89, 1,813.45 and 984.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314.89 : 1,813.45 = 984.10 : x
2. Step 2: Convert to fraction form
   1,314.89/1,813.45 = 984.10/x
3. Step 3: Cross multiply
   1,314.89x = 1,813.45 × 984.10
4. Step 4: Simplify right side
   1,314.89x = 1,784,616.15
5. Step 5: Solve for x
   x = 1,784,616.15/1,314.89
6. Step 6: Final answer
   x = 1,357.24