Finding the Fourth Proportional to 1,920.38, 2,649.98 and 1,174.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920.38 : 2,649.98 = 1,174.03 : x
2. Step 2: Convert to fraction form
   1,920.38/2,649.98 = 1,174.03/x
3. Step 3: Cross multiply
   1,920.38x = 2,649.98 × 1,174.03
4. Step 4: Simplify right side
   1,920.38x = 3,111,152.33
5. Step 5: Solve for x
   x = 3,111,152.33/1,920.38
6. Step 6: Final answer
   x = 1,620.08