Finding the Fourth Proportional to 2,212.28, 3,312.46 and 1,799.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.28 : 3,312.46 = 1,799.72 : x
2. Step 2: Convert to fraction form
   2,212.28/3,312.46 = 1,799.72/x
3. Step 3: Cross multiply
   2,212.28x = 3,312.46 × 1,799.72
4. Step 4: Simplify right side
   2,212.28x = 5,961,500.51
5. Step 5: Solve for x
   x = 5,961,500.51/2,212.28
6. Step 6: Final answer
   x = 2,694.73