Finding the Fourth Proportional to 1,779.92, 2,456.46 and 994.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,779.92 : 2,456.46 = 994.04 : x
2. Step 2: Convert to fraction form
   1,779.92/2,456.46 = 994.04/x
3. Step 3: Cross multiply
   1,779.92x = 2,456.46 × 994.04
4. Step 4: Simplify right side
   1,779.92x = 2,441,819.50
5. Step 5: Solve for x
   x = 2,441,819.50/1,779.92
6. Step 6: Final answer
   x = 1,371.87