Finding the Fourth Proportional to 2,116.83, 3,172.06 and 1,293.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.83 : 3,172.06 = 1,293.98 : x
2. Step 2: Convert to fraction form
   2,116.83/3,172.06 = 1,293.98/x
3. Step 3: Cross multiply
   2,116.83x = 3,172.06 × 1,293.98
4. Step 4: Simplify right side
   2,116.83x = 4,104,567.96
5. Step 5: Solve for x
   x = 4,104,567.96/2,116.83
6. Step 6: Final answer
   x = 1,939.01