Finding the Fourth Proportional to 2,107.77, 3,162.33 and 1,012.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,107.77 : 3,162.33 = 1,012.22 : x
2. Step 2: Convert to fraction form
   2,107.77/3,162.33 = 1,012.22/x
3. Step 3: Cross multiply
   2,107.77x = 3,162.33 × 1,012.22
4. Step 4: Simplify right side
   2,107.77x = 3,200,957.86
5. Step 5: Solve for x
   x = 3,200,957.86/2,107.77
6. Step 6: Final answer
   x = 1,518.65