Finding the Fourth Proportional to 2,810, 4,212.12 and 1,167.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,810 : 4,212.12 = 1,167.50 : x
2. Step 2: Convert to fraction form
   2,810/4,212.12 = 1,167.50/x
3. Step 3: Cross multiply
   2,810x = 4,212.12 × 1,167.50
4. Step 4: Simplify right side
   2,810x = 4,917,650.10
5. Step 5: Solve for x
   x = 4,917,650.10/2,810
6. Step 6: Final answer
   x = 1,750.05