Finding the Fourth Proportional to 3,696.10, 5,100.57 and 2,124.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,696.10 : 5,100.57 = 2,124.23 : x
2. Step 2: Convert to fraction form
   3,696.10/5,100.57 = 2,124.23/x
3. Step 3: Cross multiply
   3,696.10x = 5,100.57 × 2,124.23
4. Step 4: Simplify right side
   3,696.10x = 10,834,758.31
5. Step 5: Solve for x
   x = 10,834,758.31/3,696.10
6. Step 6: Final answer
   x = 2,931.40