Finding the Fourth Proportional to 2,649.69, 3,973.88 and 1,090.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,649.69 : 3,973.88 = 1,090.13 : x
2. Step 2: Convert to fraction form
   2,649.69/3,973.88 = 1,090.13/x
3. Step 3: Cross multiply
   2,649.69x = 3,973.88 × 1,090.13
4. Step 4: Simplify right side
   2,649.69x = 4,332,020.48
5. Step 5: Solve for x
   x = 4,332,020.48/2,649.69
6. Step 6: Final answer
   x = 1,634.92