Finding the Fourth Proportional to 2,345.63, 3,236.99 and 1,297.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.63 : 3,236.99 = 1,297.71 : x
2. Step 2: Convert to fraction form
   2,345.63/3,236.99 = 1,297.71/x
3. Step 3: Cross multiply
   2,345.63x = 3,236.99 × 1,297.71
4. Step 4: Simplify right side
   2,345.63x = 4,200,667.80
5. Step 5: Solve for x
   x = 4,200,667.80/2,345.63
6. Step 6: Final answer
   x = 1,790.85