Finding the Fourth Proportional to 1,993.06, 2,982.30 and 1,171.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,993.06 : 2,982.30 = 1,171.72 : x
2. Step 2: Convert to fraction form
   1,993.06/2,982.30 = 1,171.72/x
3. Step 3: Cross multiply
   1,993.06x = 2,982.30 × 1,171.72
4. Step 4: Simplify right side
   1,993.06x = 3,494,420.56
5. Step 5: Solve for x
   x = 3,494,420.56/1,993.06
6. Step 6: Final answer
   x = 1,753.29