Finding the Fourth Proportional to 2,801.07, 4,195.72 and 1,338.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,801.07 : 4,195.72 = 1,338.75 : x
2. Step 2: Convert to fraction form
   2,801.07/4,195.72 = 1,338.75/x
3. Step 3: Cross multiply
   2,801.07x = 4,195.72 × 1,338.75
4. Step 4: Simplify right side
   2,801.07x = 5,617,020.15
5. Step 5: Solve for x
   x = 5,617,020.15/2,801.07
6. Step 6: Final answer
   x = 2,005.31