Finding the Fourth Proportional to 2,231.50, 3,079.74 and 1,300

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231.50 : 3,079.74 = 1,300 : x
2. Step 2: Convert to fraction form
   2,231.50/3,079.74 = 1,300/x
3. Step 3: Cross multiply
   2,231.50x = 3,079.74 × 1,300
4. Step 4: Simplify right side
   2,231.50x = 4,003,662.00
5. Step 5: Solve for x
   x = 4,003,662.00/2,231.50
6. Step 6: Final answer
   x = 1,794.16