Finding the Fourth Proportional to 1,851.29, 2,554.77 and 1,012.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,851.29 : 2,554.77 = 1,012.05 : x
2. Step 2: Convert to fraction form
   1,851.29/2,554.77 = 1,012.05/x
3. Step 3: Cross multiply
   1,851.29x = 2,554.77 × 1,012.05
4. Step 4: Simplify right side
   1,851.29x = 2,585,554.98
5. Step 5: Solve for x
   x = 2,585,554.98/1,851.29
6. Step 6: Final answer
   x = 1,396.63