Finding the Fourth Proportional to 2,258.62, 3,390.69 and 1,073.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258.62 : 3,390.69 = 1,073.79 : x
2. Step 2: Convert to fraction form
   2,258.62/3,390.69 = 1,073.79/x
3. Step 3: Cross multiply
   2,258.62x = 3,390.69 × 1,073.79
4. Step 4: Simplify right side
   2,258.62x = 3,640,889.02
5. Step 5: Solve for x
   x = 3,640,889.02/2,258.62
6. Step 6: Final answer
   x = 1,612.00