Finding the Fourth Proportional to 2,798.31, 4,191.07 and 1,338.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,798.31 : 4,191.07 = 1,338.49 : x
2. Step 2: Convert to fraction form
   2,798.31/4,191.07 = 1,338.49/x
3. Step 3: Cross multiply
   2,798.31x = 4,191.07 × 1,338.49
4. Step 4: Simplify right side
   2,798.31x = 5,609,705.28
5. Step 5: Solve for x
   x = 5,609,705.28/2,798.31
6. Step 6: Final answer
   x = 2,004.68