Finding the Fourth Proportional to 3,887.46, 5,364.56 and 2,119.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,887.46 : 5,364.56 = 2,119.10 : x
2. Step 2: Convert to fraction form
   3,887.46/5,364.56 = 2,119.10/x
3. Step 3: Cross multiply
   3,887.46x = 5,364.56 × 2,119.10
4. Step 4: Simplify right side
   3,887.46x = 11,368,017.57
5. Step 5: Solve for x
   x = 11,368,017.57/3,887.46
6. Step 6: Final answer
   x = 2,924.28