Finding the Fourth Proportional to 2,713.57, 4,061.12 and 2,100.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,713.57 : 4,061.12 = 2,100.01 : x
2. Step 2: Convert to fraction form
   2,713.57/4,061.12 = 2,100.01/x
3. Step 3: Cross multiply
   2,713.57x = 4,061.12 × 2,100.01
4. Step 4: Simplify right side
   2,713.57x = 8,528,391.39
5. Step 5: Solve for x
   x = 8,528,391.39/2,713.57
6. Step 6: Final answer
   x = 3,142.87