Finding the Fourth Proportional to 1,607.83, 2,412.69 and 683.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,607.83 : 2,412.69 = 683.31 : x
2. Step 2: Convert to fraction form
   1,607.83/2,412.69 = 683.31/x
3. Step 3: Cross multiply
   1,607.83x = 2,412.69 × 683.31
4. Step 4: Simplify right side
   1,607.83x = 1,648,615.20
5. Step 5: Solve for x
   x = 1,648,615.20/1,607.83
6. Step 6: Final answer
   x = 1,025.37