Finding the Fourth Proportional to 2,159.28, 3,234.72 and 1,337.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159.28 : 3,234.72 = 1,337.88 : x
2. Step 2: Convert to fraction form
   2,159.28/3,234.72 = 1,337.88/x
3. Step 3: Cross multiply
   2,159.28x = 3,234.72 × 1,337.88
4. Step 4: Simplify right side
   2,159.28x = 4,327,667.19
5. Step 5: Solve for x
   x = 4,327,667.19/2,159.28
6. Step 6: Final answer
   x = 2,004.22