Finding the Fourth Proportional to 3,760.50, 5,189.67 and 2,167.39

Step by Step Solution

1. Step 1: Write the proportion equation
   3,760.50 : 5,189.67 = 2,167.39 : x
2. Step 2: Convert to fraction form
   3,760.50/5,189.67 = 2,167.39/x
3. Step 3: Cross multiply
   3,760.50x = 5,189.67 × 2,167.39
4. Step 4: Simplify right side
   3,760.50x = 11,248,038.86
5. Step 5: Solve for x
   x = 11,248,038.86/3,760.50
6. Step 6: Final answer
   x = 2,991.10