Finding the Fourth Proportional to 2,623.35, 3,933.59 and 1,040.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,623.35 : 3,933.59 = 1,040.47 : x
2. Step 2: Convert to fraction form
   2,623.35/3,933.59 = 1,040.47/x
3. Step 3: Cross multiply
   2,623.35x = 3,933.59 × 1,040.47
4. Step 4: Simplify right side
   2,623.35x = 4,092,757.52
5. Step 5: Solve for x
   x = 4,092,757.52/2,623.35
6. Step 6: Final answer
   x = 1,560.13