Finding the Fourth Proportional to 1,683.48, 2,322.96 and 984.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,683.48 : 2,322.96 = 984.72 : x
2. Step 2: Convert to fraction form
   1,683.48/2,322.96 = 984.72/x
3. Step 3: Cross multiply
   1,683.48x = 2,322.96 × 984.72
4. Step 4: Simplify right side
   1,683.48x = 2,287,465.17
5. Step 5: Solve for x
   x = 2,287,465.17/1,683.48
6. Step 6: Final answer
   x = 1,358.77