Finding the Fourth Proportional to 1,623.80, 2,432.69 and 1,365.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,623.80 : 2,432.69 = 1,365.47 : x
2. Step 2: Convert to fraction form
   1,623.80/2,432.69 = 1,365.47/x
3. Step 3: Cross multiply
   1,623.80x = 2,432.69 × 1,365.47
4. Step 4: Simplify right side
   1,623.80x = 3,321,758.39
5. Step 5: Solve for x
   x = 3,321,758.39/1,623.80
6. Step 6: Final answer
   x = 2,045.67