Finding the Fourth Proportional to 1,683.21, 2,322.83 and 975.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,683.21 : 2,322.83 = 975.29 : x
2. Step 2: Convert to fraction form
   1,683.21/2,322.83 = 975.29/x
3. Step 3: Cross multiply
   1,683.21x = 2,322.83 × 975.29
4. Step 4: Simplify right side
   1,683.21x = 2,265,431.27
5. Step 5: Solve for x
   x = 2,265,431.27/1,683.21
6. Step 6: Final answer
   x = 1,345.90