Finding the Fourth Proportional to 1,682.36, 2,321.99 and 974.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,682.36 : 2,321.99 = 974.32 : x
2. Step 2: Convert to fraction form
   1,682.36/2,321.99 = 974.32/x
3. Step 3: Cross multiply
   1,682.36x = 2,321.99 × 974.32
4. Step 4: Simplify right side
   1,682.36x = 2,262,344.82
5. Step 5: Solve for x
   x = 2,262,344.82/1,682.36
6. Step 6: Final answer
   x = 1,344.75