Finding the Fourth Proportional to 1,779.83, 2,456.14 and 993.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,779.83 : 2,456.14 = 993.87 : x
2. Step 2: Convert to fraction form
   1,779.83/2,456.14 = 993.87/x
3. Step 3: Cross multiply
   1,779.83x = 2,456.14 × 993.87
4. Step 4: Simplify right side
   1,779.83x = 2,441,083.86
5. Step 5: Solve for x
   x = 2,441,083.86/1,779.83
6. Step 6: Final answer
   x = 1,371.53