Finding the Fourth Proportional to 5,691.08, 8,538.82 and 1,993.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,691.08 : 8,538.82 = 1,993.72 : x
2. Step 2: Convert to fraction form
   5,691.08/8,538.82 = 1,993.72/x
3. Step 3: Cross multiply
   5,691.08x = 8,538.82 × 1,993.72
4. Step 4: Simplify right side
   5,691.08x = 17,024,016.21
5. Step 5: Solve for x
   x = 17,024,016.21/5,691.08
6. Step 6: Final answer
   x = 2,991.35