Finding the Fourth Proportional to 3,601.89, 4,970.84 and 2,111.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,601.89 : 4,970.84 = 2,111.49 : x
2. Step 2: Convert to fraction form
   3,601.89/4,970.84 = 2,111.49/x
3. Step 3: Cross multiply
   3,601.89x = 4,970.84 × 2,111.49
4. Step 4: Simplify right side
   3,601.89x = 10,495,868.39
5. Step 5: Solve for x
   x = 10,495,868.39/3,601.89
6. Step 6: Final answer
   x = 2,913.99