Finding the Fourth Proportional to 2,345.59, 3,236.91 and 1,297.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.59 : 3,236.91 = 1,297.67 : x
2. Step 2: Convert to fraction form
   2,345.59/3,236.91 = 1,297.67/x
3. Step 3: Cross multiply
   2,345.59x = 3,236.91 × 1,297.67
4. Step 4: Simplify right side
   2,345.59x = 4,200,441.00
5. Step 5: Solve for x
   x = 4,200,441.00/2,345.59
6. Step 6: Final answer
   x = 1,790.78