Finding the Fourth Proportional to 2,345.67, 3,515.63 and 1,480.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.67 : 3,515.63 = 1,480.23 : x
2. Step 2: Convert to fraction form
   2,345.67/3,515.63 = 1,480.23/x
3. Step 3: Cross multiply
   2,345.67x = 3,515.63 × 1,480.23
4. Step 4: Simplify right side
   2,345.67x = 5,203,933.59
5. Step 5: Solve for x
   x = 5,203,933.59/2,345.67
6. Step 6: Final answer
   x = 2,218.53