Finding the Fourth Proportional to 2,003.69, 2,764.96 and 1,207.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.69 : 2,764.96 = 1,207.13 : x
2. Step 2: Convert to fraction form
   2,003.69/2,764.96 = 1,207.13/x
3. Step 3: Cross multiply
   2,003.69x = 2,764.96 × 1,207.13
4. Step 4: Simplify right side
   2,003.69x = 3,337,649.32
5. Step 5: Solve for x
   x = 3,337,649.32/2,003.69
6. Step 6: Final answer
   x = 1,665.75