Finding the Fourth Proportional to 2,157.06, 3,234.78 and 1,002

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157.06 : 3,234.78 = 1,002 : x
2. Step 2: Convert to fraction form
   2,157.06/3,234.78 = 1,002/x
3. Step 3: Cross multiply
   2,157.06x = 3,234.78 × 1,002
4. Step 4: Simplify right side
   2,157.06x = 3,241,249.56
5. Step 5: Solve for x
   x = 3,241,249.56/2,157.06
6. Step 6: Final answer
   x = 1,502.62