Finding the Fourth Proportional to 1,779.46, 2,668.83 and 683.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,779.46 : 2,668.83 = 683.98 : x
2. Step 2: Convert to fraction form
   1,779.46/2,668.83 = 683.98/x
3. Step 3: Cross multiply
   1,779.46x = 2,668.83 × 683.98
4. Step 4: Simplify right side
   1,779.46x = 1,825,426.34
5. Step 5: Solve for x
   x = 1,825,426.34/1,779.46
6. Step 6: Final answer
   x = 1,025.83