Finding the Fourth Proportional to 3,591.57, 4,957.20 and 2,100.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591.57 : 4,957.20 = 2,100.18 : x
2. Step 2: Convert to fraction form
   3,591.57/4,957.20 = 2,100.18/x
3. Step 3: Cross multiply
   3,591.57x = 4,957.20 × 2,100.18
4. Step 4: Simplify right side
   3,591.57x = 10,411,012.30
5. Step 5: Solve for x
   x = 10,411,012.30/3,591.57
6. Step 6: Final answer
   x = 2,898.74