Finding the Fourth Proportional to 2,801.12, 4,200.06 and 1,338.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,801.12 : 4,200.06 = 1,338.26 : x
2. Step 2: Convert to fraction form
   2,801.12/4,200.06 = 1,338.26/x
3. Step 3: Cross multiply
   2,801.12x = 4,200.06 × 1,338.26
4. Step 4: Simplify right side
   2,801.12x = 5,620,772.30
5. Step 5: Solve for x
   x = 5,620,772.30/2,801.12
6. Step 6: Final answer
   x = 2,006.62