Finding the Fourth Proportional to 1,919.83, 2,649.50 and 1,658.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919.83 : 2,649.50 = 1,658.47 : x
2. Step 2: Convert to fraction form
   1,919.83/2,649.50 = 1,658.47/x
3. Step 3: Cross multiply
   1,919.83x = 2,649.50 × 1,658.47
4. Step 4: Simplify right side
   1,919.83x = 4,394,116.27
5. Step 5: Solve for x
   x = 4,394,116.27/1,919.83
6. Step 6: Final answer
   x = 2,288.80