Finding the Fourth Proportional to 1,073.00, 1,609.22 and 342.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,073.00 : 1,609.22 = 342.20 : x
2. Step 2: Convert to fraction form
   1,073.00/1,609.22 = 342.20/x
3. Step 3: Cross multiply
   1,073.00x = 1,609.22 × 342.20
4. Step 4: Simplify right side
   1,073.00x = 550,667.89
5. Step 5: Solve for x
   x = 550,667.89/1,073.00
6. Step 6: Final answer
   x = 513.21