Finding the Fourth Proportional to 1,950.05, 2,691.61 and 1,111.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,950.05 : 2,691.61 = 1,111.21 : x
2. Step 2: Convert to fraction form
   1,950.05/2,691.61 = 1,111.21/x
3. Step 3: Cross multiply
   1,950.05x = 2,691.61 × 1,111.21
4. Step 4: Simplify right side
   1,950.05x = 2,990,934.44
5. Step 5: Solve for x
   x = 2,990,934.44/1,950.05
6. Step 6: Final answer
   x = 1,533.77