Finding the Fourth Proportional to 2,345.55, 3,236.52 and 1,297.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.55 : 3,236.52 = 1,297.61 : x
2. Step 2: Convert to fraction form
   2,345.55/3,236.52 = 1,297.61/x
3. Step 3: Cross multiply
   2,345.55x = 3,236.52 × 1,297.61
4. Step 4: Simplify right side
   2,345.55x = 4,199,740.72
5. Step 5: Solve for x
   x = 4,199,740.72/2,345.55
6. Step 6: Final answer
   x = 1,790.51