Finding the Fourth Proportional to 2,345.46, 3,236.58 and 1,297.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.46 : 3,236.58 = 1,297.50 : x
2. Step 2: Convert to fraction form
   2,345.46/3,236.58 = 1,297.50/x
3. Step 3: Cross multiply
   2,345.46x = 3,236.58 × 1,297.50
4. Step 4: Simplify right side
   2,345.46x = 4,199,462.55
5. Step 5: Solve for x
   x = 4,199,462.55/2,345.46
6. Step 6: Final answer
   x = 1,790.46