Finding the Fourth Proportional to 1,854.15, 2,779.59 and 683.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,854.15 : 2,779.59 = 683.31 : x
2. Step 2: Convert to fraction form
   1,854.15/2,779.59 = 683.31/x
3. Step 3: Cross multiply
   1,854.15x = 2,779.59 × 683.31
4. Step 4: Simplify right side
   1,854.15x = 1,899,321.64
5. Step 5: Solve for x
   x = 1,899,321.64/1,854.15
6. Step 6: Final answer
   x = 1,024.36