Finding the Fourth Proportional to 3,651.57, 5,038.16 and 2,117.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651.57 : 5,038.16 = 2,117.94 : x
2. Step 2: Convert to fraction form
   3,651.57/5,038.16 = 2,117.94/x
3. Step 3: Cross multiply
   3,651.57x = 5,038.16 × 2,117.94
4. Step 4: Simplify right side
   3,651.57x = 10,670,520.59
5. Step 5: Solve for x
   x = 10,670,520.59/3,651.57
6. Step 6: Final answer
   x = 2,922.17