Finding the Fourth Proportional to 2,070.72, 3,101.01 and 1,338.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,070.72 : 3,101.01 = 1,338.09 : x
2. Step 2: Convert to fraction form
   2,070.72/3,101.01 = 1,338.09/x
3. Step 3: Cross multiply
   2,070.72x = 3,101.01 × 1,338.09
4. Step 4: Simplify right side
   2,070.72x = 4,149,430.47
5. Step 5: Solve for x
   x = 4,149,430.47/2,070.72
6. Step 6: Final answer
   x = 2,003.86