Finding the Fourth Proportional to 3,199.37, 4,792.84 and 2,100.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,199.37 : 4,792.84 = 2,100.40 : x
2. Step 2: Convert to fraction form
   3,199.37/4,792.84 = 2,100.40/x
3. Step 3: Cross multiply
   3,199.37x = 4,792.84 × 2,100.40
4. Step 4: Simplify right side
   3,199.37x = 10,066,863.90
5. Step 5: Solve for x
   x = 10,066,863.90/3,199.37
6. Step 6: Final answer
   x = 3,146.52