Finding the Fourth Proportional to 3,941.48, 5,439.50 and 2,173.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,941.48 : 5,439.50 = 2,173.10 : x
2. Step 2: Convert to fraction form
   3,941.48/5,439.50 = 2,173.10/x
3. Step 3: Cross multiply
   3,941.48x = 5,439.50 × 2,173.10
4. Step 4: Simplify right side
   3,941.48x = 11,820,547.54
5. Step 5: Solve for x
   x = 11,820,547.54/3,941.48
6. Step 6: Final answer
   x = 2,999.01