Finding the Fourth Proportional to 2,518.84, 3,771.78 and 2,130.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518.84 : 3,771.78 = 2,130.04 : x
2. Step 2: Convert to fraction form
   2,518.84/3,771.78 = 2,130.04/x
3. Step 3: Cross multiply
   2,518.84x = 3,771.78 × 2,130.04
4. Step 4: Simplify right side
   2,518.84x = 8,034,042.27
5. Step 5: Solve for x
   x = 8,034,042.27/2,518.84
6. Step 6: Final answer
   x = 3,189.58