Finding the Fourth Proportional to 2,417.89, 3,336.78 and 1,369.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,417.89 : 3,336.78 = 1,369.96 : x
2. Step 2: Convert to fraction form
   2,417.89/3,336.78 = 1,369.96/x
3. Step 3: Cross multiply
   2,417.89x = 3,336.78 × 1,369.96
4. Step 4: Simplify right side
   2,417.89x = 4,571,255.13
5. Step 5: Solve for x
   x = 4,571,255.13/2,417.89
6. Step 6: Final answer
   x = 1,890.60