Finding the Fourth Proportional to 1,618.30, 2,234.31 and 1,244.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618.30 : 2,234.31 = 1,244.59 : x
2. Step 2: Convert to fraction form
   1,618.30/2,234.31 = 1,244.59/x
3. Step 3: Cross multiply
   1,618.30x = 2,234.31 × 1,244.59
4. Step 4: Simplify right side
   1,618.30x = 2,780,799.88
5. Step 5: Solve for x
   x = 2,780,799.88/1,618.30
6. Step 6: Final answer
   x = 1,718.35