Finding the Fourth Proportional to 1,891.33, 2,607.77 and 1,227.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,891.33 : 2,607.77 = 1,227.94 : x
2. Step 2: Convert to fraction form
   1,891.33/2,607.77 = 1,227.94/x
3. Step 3: Cross multiply
   1,891.33x = 2,607.77 × 1,227.94
4. Step 4: Simplify right side
   1,891.33x = 3,202,172.43
5. Step 5: Solve for x
   x = 3,202,172.43/1,891.33
6. Step 6: Final answer
   x = 1,693.08