Finding the Fourth Proportional to 2,157.72, 3,238.64 and 1,062.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157.72 : 3,238.64 = 1,062.84 : x
2. Step 2: Convert to fraction form
   2,157.72/3,238.64 = 1,062.84/x
3. Step 3: Cross multiply
   2,157.72x = 3,238.64 × 1,062.84
4. Step 4: Simplify right side
   2,157.72x = 3,442,156.14
5. Step 5: Solve for x
   x = 3,442,156.14/2,157.72
6. Step 6: Final answer
   x = 1,595.27