Finding the Fourth Proportional to 2,417.72, 3,336.39 and 1,369.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,417.72 : 3,336.39 = 1,369.98 : x
2. Step 2: Convert to fraction form
   2,417.72/3,336.39 = 1,369.98/x
3. Step 3: Cross multiply
   2,417.72x = 3,336.39 × 1,369.98
4. Step 4: Simplify right side
   2,417.72x = 4,570,787.57
5. Step 5: Solve for x
   x = 4,570,787.57/2,417.72
6. Step 6: Final answer
   x = 1,890.54