Finding the Fourth Proportional to 1,100.04, 1,649.73 and 320.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.04 : 1,649.73 = 320.10 : x
2. Step 2: Convert to fraction form
   1,100.04/1,649.73 = 320.10/x
3. Step 3: Cross multiply
   1,100.04x = 1,649.73 × 320.10
4. Step 4: Simplify right side
   1,100.04x = 528,081.52
5. Step 5: Solve for x
   x = 528,081.52/1,100.04
6. Step 6: Final answer
   x = 480.06