Finding the Fourth Proportional to 2,402.69, 3,315.83 and 1,408.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.69 : 3,315.83 = 1,408.55 : x
2. Step 2: Convert to fraction form
   2,402.69/3,315.83 = 1,408.55/x
3. Step 3: Cross multiply
   2,402.69x = 3,315.83 × 1,408.55
4. Step 4: Simplify right side
   2,402.69x = 4,670,488.72
5. Step 5: Solve for x
   x = 4,670,488.72/2,402.69
6. Step 6: Final answer
   x = 1,943.86