Finding the Fourth Proportional to 2,184.09, 3,013.57 and 1,397.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,184.09 : 3,013.57 = 1,397.98 : x
2. Step 2: Convert to fraction form
   2,184.09/3,013.57 = 1,397.98/x
3. Step 3: Cross multiply
   2,184.09x = 3,013.57 × 1,397.98
4. Step 4: Simplify right side
   2,184.09x = 4,212,910.59
5. Step 5: Solve for x
   x = 4,212,910.59/2,184.09
6. Step 6: Final answer
   x = 1,928.91