Finding the Fourth Proportional to 2,238.59, 3,359.34 and 851.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.59 : 3,359.34 = 851.93 : x
2. Step 2: Convert to fraction form
   2,238.59/3,359.34 = 851.93/x
3. Step 3: Cross multiply
   2,238.59x = 3,359.34 × 851.93
4. Step 4: Simplify right side
   2,238.59x = 2,861,927.73
5. Step 5: Solve for x
   x = 2,861,927.73/2,238.59
6. Step 6: Final answer
   x = 1,278.45