Finding the Fourth Proportional to 3,768.72, 5,201.32 and 2,113.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,768.72 : 5,201.32 = 2,113.04 : x
2. Step 2: Convert to fraction form
   3,768.72/5,201.32 = 2,113.04/x
3. Step 3: Cross multiply
   3,768.72x = 5,201.32 × 2,113.04
4. Step 4: Simplify right side
   3,768.72x = 10,990,597.21
5. Step 5: Solve for x
   x = 10,990,597.21/3,768.72
6. Step 6: Final answer
   x = 2,916.27