Finding the Fourth Proportional to 1,683.73, 2,321.78 and 1,329.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,683.73 : 2,321.78 = 1,329.06 : x
2. Step 2: Convert to fraction form
   1,683.73/2,321.78 = 1,329.06/x
3. Step 3: Cross multiply
   1,683.73x = 2,321.78 × 1,329.06
4. Step 4: Simplify right side
   1,683.73x = 3,085,784.93
5. Step 5: Solve for x
   x = 3,085,784.93/1,683.73
6. Step 6: Final answer
   x = 1,832.71